Auto Parts That Start With E

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Eccentric Bolt

An eccentric bolt is essentially a regular bolt with a washer below its head that’s offset, which means it isn’t centered. When the eccentric bolt is rotated, the suspension component will follow a circular path around the washer’s centerline. Turning the bolt changes a vehicle’s camber, which refers to the angle at which the vehicle’s wheels are tilted inward or outward.

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Suspension

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Eccentric Shaft

The eccentric shaft is a component inside the engine’s cylinder head, as it’s part that plays a pivotal role in a vehicle’s valvetrain. The eccentric shaft is essentially a camshaft that controls valve timing. However, eccentric shafts are typically found in BMW vehicles, as the eccentric shaft is a component in BMW’s Valvetronic engines. A valve lift controls the eccentric shaft, which then adjusts the amount in which the engine’s valves lift, which has corresponding changes in engine characteristics.

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Ecometer

An Ecometer is a gauge that displays your vehicle’s fuel economy. Modern vehicles can have ecometers built into the gauge cluster’s display, but drivers can install aftermarket ecometers that mount on top of a vehicle’s dashboard and plug into their vehicle’s OBD-II port. This gauge is designed to show how the driver’s driving style affects their gas mileage.

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Accessories

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EGR Adapter

The Exhaust Gas Recirculation or EGR system helps lower NOx levels and control detonation. On vehicles that still have a carburetor, the valve is typically located at the top of the engine’s rear near the firewall. With the help of an EGR Adapter, the EGR valve is repositioned to allow clearance for the carburetor. These adapters are usually made of cast aluminum, and they come with complete gaskets and bolts.

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Where is the EGR Valve Located?

EGR Check Valve

The EGR check valve is a key component in the exhaust system and engine.

It returns a small portion of exhaust gas to the engine’s combustion chambers through the intake manifold. This lowers combustion temperatures and reduces the amount of nitrogen oxide emitted by your car.

The valve closes when the engine starts up to ensure enough oxygen enters the cylinder. It opens in an idle or low-speed state.

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EGR Cooler

The EGR Cooler prevents the engine from overheating by controlling the temperature of the combustion. It accomplishes this by diluting the air-to-fuel mixture in the cylinder with gas from the exhaust, which has been cooled by the coolant. EGR coolers are found in engines that use Exhaust Gas Recirculation (EGR).

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EGR Cooler Clamp

The EGR Cooler clamp is a clamp that secures the exhaust gas recirculation (EGR) cooler, which is a heat exchanger that’s responsible for cooling exhaust gases before they’re recirculated into the engine. This helps improve the vehicle’s fuel economy and emissions. The cooler clamp is designed to hold the cooler firmly in place amidst engine vibrations. EGR cooler clamps are also made from durable materials that can withstand high temperatures and pressure from the engine’s exhaust gases.

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EGR Valve

EGR Cooler Gasket

The EGR cooler gasket seals the gap between the exhaust gas recirculation cooler and the engine block or intake manifold. Usually made of composite or metal material that can handle the heat and pressure of exhaust gases, the gasket plays a critical role in the EGR system. They prevent metal-on-metal contact between the connected parts and help maintain pressure levels within the exhaust system while preventing exhaust gases from escaping.

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P2457 Code: Exhaust Gas Recirculation Cooling System Performance

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EGR Cooler Hose

The EGR Cooler Hose connects the engine to the exhaust gas recirculation (EGR) cooler, carrying exhaust gases to the EGR cooler to be cooled before they’re recirculated back into the engine. Like many other components in the EGR system, the EGR cooler hose needs to be made from high-quality materials that are resistant to the high temperatures that come with handling exhaust gas condensate. They also need to handle the high pressure that comes from the exhaust gases.

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EGR Cooler

EGR Delete Kit

An exhaust gas recirculation (EGR) delete kit can include parts that you need to remove your vehicle’s exhaust gas recirculation system, which is a system that reintroduces exhaust gases into the combustion chamber. Deleting the EGR system can bring benefits like reduced carbon buildup and improved engine airflow, which will result in better performance. The driver can also experience improved throttle response, increased horsepower, and better fuel efficiency. However, this can come at the cost of increased emissions.

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EGR Filter

The exhaust gas recirculation (EGR) filter is a filter that captures particulate matter in the exhaust gases that return to the engine as part of the emissions control process. This part is possibly needed if you need to replace a damaged or clogged EGR filter after getting the related diagnostic trouble code. The EGR filter is in the EGR system. The EGR system needs this part to control emission levels.

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EGR Line

The EGR Line, short for exhaust gas recirculation line, is in charge of reducing the amount of harmful emissions by transferring exhaust gases back into the cylinder. The redirected gases cool the engine and increase mass for compression, lowering fuel consumption because the combustion chamber burns the redirected gases. EGR lines can be hard metal tubes, flexible hoses, or a combination of both. EGR lines typically last a long time, but a buildup of carbon and other elements can prevent the tube from opening and closing properly.

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EGR Pressure Feedback Sensor

The exhaust gas recirculation (EGR) pressure feedback sensor monitors the flow of exhaust gas that circulates in the engine.

If the EGR Pressure Feedback Sensor detects that the pressure is low, the control module will open the EGR valve to increase flow. On the other hand, high pressure readings will cause the control module to close the EGR valve.

A damaged EGR pressure feedback sensor can impact engine performance, affecting the vehicle’s fuel economy and resulting in increased exhaust emissions.

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EGR Temperature Sensor

The exhaust gas recirculation (EGR) temperature sensor monitors the temperature in the exhaust passage between the EGR valve and the intake manifold.

The powertrain control module (PCM) can determine that the EGR valve and other related components are functioning if the temperature increases when the EGR is turned on.

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EGR Vacuum Sensor

The Exhaust Gas Recirculation (EGR) Vacuum Sensor monitors the movement of the EGR valve and detects exhaust gas flow through the EGR passage.

On-board diagnostics (OBD-II) uses the data from the EGR vacuum sensor to verify whether or not the EGR valve has opened.

The EGR vacuum sensor plays a critical role in engine operation. Once it fails, the resulting conditions may cause the engine to operate poorly. Too much flow of exhaust gasses may cause the vehicle to stall or idle roughly, while too little may cause elevated emission levels that may cause detonation.

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EGR Vacuum Solenoid

The EGR vacuum solenoid or EGR solenoid controls when engine vacuum is sent to the EGR valve. The EGR needs engine vacuum so that it can have the suction needed to pull exhaust gases and introduce them into the intake manifold. The EGR solenoid is part of the EGR system, which helps lower engine temperature, improve performance, and reduce nitrogen oxide emissions.

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EGR Valve

The EGR Valve connects the exhaust manifold to the intake manifold, making it a major component of the Exhaust Gas Recirculation (EGR) system. It is also responsible for controlling the flow of exhaust gas, making adjustments to the amount of gas that gets recirculated according to the engine load. The EGR valve can typically be found on the driver’s side of the engine between the exhaust manifold and the intake manifold.

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EGR Valve Adapter

The EGR Valve Adapter repositions the EGR valve, increasing the available clearance for the carburetor. This part might be needed if you’re installing a larger carburetor that needs more room and the EGR valve gets in the way. Attached to the vehicle’s EGR valve between the engine and intake manifold, the EGR valve adapter ensures exhaust gas can recirculate into the intake manifold properly. The EGR valve relies on the adapter to keep it in its new location and maintain good exhaust gas recirculation.

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EGR Valve Air Flap

The Exhaust Gas Recirculation (EGR) Valve Air Flap helps reduce a vehicle’s harmful emissions by recirculating a portion of the exhaust gas back into the engine. Also known as the EGR valve air regulator flap, it provides the necessary exhaust gas back pressure in case the pressure difference isn’t enough. It’s typically made of durable materials that can withstand heat, vibration, and other external factors present in the exhaust system.

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EGR Valve Control Solenoid

The EGR Valve Control Solenoid is an electrical component that converts electrical energy into mechanical work as part of the exhaust gas recirculation (EGR) system. It connects to the EGR valve as it manages the exhaust gas flow from the engine’s combustion chambers to the rest of the exhaust system. The EGR valve control solenoid sends signals to the EGR valve, instructing it to close or open depending on the vehicle’s engine load.

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EGR Valve Gasket

The EGR valve gasket prevents leaks in your vehicle’s exhaust gas recirculation system. The EGR valve gasket sits where the EGR valve mounts to the intake manifold or engine block. Since the system facilitates hot exhaust gases and sits near the engine, the gasket is made from heat-resistant materials such as metals and composites. A damaged EGR valve gasket can cause exhaust gases to leak out, which can lead to problems like increased emissions, reduced engine performance, and engine misfires.

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EGR Valve Position Sensor

An Exhaust Gas Recirculation (EGR) Valve Position Sensor monitors and reports the position of the EGR valve to the powertrain control module (PCM). The EGR valve controls the flow of exhaust gasses back into the engine intake manifold to reduce nitrogen oxide (NOx) emissions by lowering combustion temperatures.

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What Does an EGR Valve Do?

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EGR Valve Temperature Sensor

The EGR Valve Temperature Sensor measures the temperature of the incoming exhaust to help the engine control module (ECM) determine when and how far to open the EGR valve. This allows exhaust gas to be recirculated to the intake.

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EGT Sensor

The exhaust gas temperature (EGT) sensor measures the temperature of the exhaust gas that enters the diesel particulate filter (DPF).

The powertrain control module (PCM) monitors the readings from the EGT Sensor to control DPF regeneration.

There are usually two EGT sensors in a diesel engine. The first EGT sensor is located between the diesel oxidation catalysts (DOC) and DPF. The second sensor can be found at the end of the DPF.

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Electrical Pigtail

The Electrical Pigtail is a wire with an open connector at one end that can plug into the electronic control unit (ECU) and loose stripped wires at the other end that attach to other devices. This part might be needed if you’re installing a new part or replacing old or damaged electrical pigtails. Electrical pigtails are found between the ECU and the parts controlled by the computer. The ECU needs the electrical pigtail to transmit information between it and various parts.

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Electrical System

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Electronic Brake Control Module

The Electronic Brake Control Module (EBCM) is a microprocessor that uses input from various sensors to regulate hydraulic pressure during braking to prevent wheel lockup. It is also known as the ABS electronic control module or controller antilock brakes (CAB) module.

This control module is typically found on the hydraulic modulator assembly in newer vehicles with compact ABS systems. Otherwise, it may be located in the trunk, passenger compartment, or under the hood.

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Braking System

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Emblem

A car Emblem symbolizes and represents a brand’s identity and story. These logos make vehicles easily identifiable.

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Accessories

Tips for How To Remove Car Emblems

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Emblem Gasket

An emblem gasket is a small, rubber seal designed to fit between a vehicle’s emblem and its mounting surface. This is typically installed on the hood to prevent water, dust, and other contaminants from entering the area behind the emblem. This component maintains the emblem’s appearance by raising it slightly from the hood.

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Emblem Retainer

The Emblem Retainer secures an emblem to the vehicle. This part might be needed if the current or stock retainer is worn out or damaged, loosening the emblem and increasing the chance that the part might detach from the vehicle. Emblem retainers are mounted behind the emblem that they keep attached to the grille. Brand and manufacturer emblems rely on the retainer to keep their insignias in place.

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Tips for How To Remove Car Emblems

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Emission Control Hose

The Emission Control Hose connects the exhaust manifold shroud to the air cleaner to control the overall levels of emission. Hot air from the exhaust is also diverted by the emission control hose and used to prevent carburetor icing while simultaneously warming up the engine. It can be found in the exhaust manifold.

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Emission Control Relay

The Emission Control Relay helps regulate the emission levels of an engine to reduce pollutants produced by the engine. It works hand-in-hand with other emission control components, such as catalytic converters. An emission control relay helps the engine function properly, and when it fails, you’re likely to notice poor engine performance and increased emissions. High-quality emission control relays are typically encased in composite housings that protect the wires from engine heat.

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Emission Hose

The Emission Hose is a type of tube that is responsible for pre-heating the air-fuel mixture before it enters the carburetor. This makes it easier for the fuel to vaporize, making the fuel combustion process much more efficient to produce less harmful emissions.

Emission duct hoses are usually made of durable, heat-resistant materials that can withstand high temperatures, thermal cycling, and vibrations.

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Emission Label

The Emission Label displays information regarding an engine’s emissions. It includes the manufacturer’s name, the manufacturer’s trademark, and the manufacturer’s statement of compliance in line with Environment Protection Agency (EPA) emission regulations. The EPA also calls this label the Vehicle Emission Control Information.

Light-duty vehicles and trucks usually have an emission label beneath their hoods or inside their engine compartments. Heavy-duty vehicles and engines have the label on the engine block. Motorcycles and scooters have the label stuck on an easy-to-access location like on the frame or under the seat.

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Engine Air Intake Heater

The engine air intake heater is a part that raises the engine’s temperature before startup by heating the air flowing into the engine. This part might be needed if you have problems starting the engine during winter. Engine air intake heaters are in the air intake and are crucial parts of the cold start system in some diesel cars. The engine needs the air intake heater to start and run without problems when it’s cold outside.

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Engine Apron

The Engine Apron, otherwise known as the front splash pan/apron, sits under the grille between the core support and the front bumper. It protects the underside of the engine from contamination and impact damage from road debris.

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Engine Block Drain Plug

The Engine Block Drain Plug is a large bolt that keeps a vehicle’s engine block drain sealed shut. An engine block drain allows you to safely drain coolant from the engine block. This is in contrast to the petcock on the radiator, which only allows you to drain coolant from the radiator and lines. You can typically find the engine block drain and its plug located on the rear of the engine block, near the flywheel housing.

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Engine Block Washer

The Engine Block Washer is a mostly flat, disk-shaped plate with a hole at its center. These washers can be found between certain parts of a vehicle’s engine block. They distribute the load of threaded fasteners like bolt or cap screws in the engine. In addition, these washers serve as spacers between the engine block components. If the engine block washer is made of rubber, it also reduces vibration. The design and material of an engine block washer depends on the vehicle make and model and the washer’s place and specific purpose in the engine block.

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Engine Bolt Kit

The Engine Bolt Kit is a set of bolts used to keep the engine in place. They are designed to resist the force generated by moving pistons, holding the engine steady and preventing any shaking under the hood when driving.

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Engine Camshaft O-Ring

The Engine Camshaft O-Ring can typically be found with the camshaft oil seal, which keeps the oil in the camshaft from leaking out during daily operation. The o-ring aids in keeping this seal tight and secure, which is important for keeping the inside of the camshaft properly lubricated as the engine runs. Like other o-rings, the engine camshaft o-ring is circular with a hole in the middle. Some variants also have a groove between their walls.

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Engine Camshaft Variable Timing Sensor

The Engine Camshaft Variable Timing Sensor monitors the timing of the intake and exhaust valves of the camshaft. These sensors work closely with the VVT (valve variable timing) solenoid to ensure the camshaft shifts on time.

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Engine Compartment Insulator

The engine compartment insulator insulates the interior cabin and engine compartment components from heat and vibrations. This part might be needed if your vehicle has issues caused by damaged or worn-out insulators. Engine compartment insulators are mounted in different parts of the engine bay, and they reduce the noise made by the engine. Parts like the engine mount crossmember and transmission support need these insulators to protect them from high temperatures and vibration-related damage.

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Symptoms of a Bad Harmonic Balancer

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Engine Compartment Panel

The Engine Compartment Panel is a panel covering that’s usually made from high-quality plastic or carbon fiber. It encases and protects your engine compartment from dirt, debris, and other contaminants while reducing engine noise. It can also help improve aerodynamics, which can improve your vehicle’s overall performance. In some vehicles, the engine compartment also consists of the combustion heater, which the panel also covers and protects. Most engine compartment panels are resistant to wear and can withstand high and low temperatures.

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Engine Compartment Seal

TheEngine Compartment Seal keeps moisture and debris out of the engine compartment. This part might be needed if your vehicle has issues caused by a loose or degraded seal, such as external moisture leaking into the engine compartment. Engine compartment seals are mounted in a vehicle’s engine compartment and help cushion the hood when you close it. Various engine parts, such as the spark plugs, need the engine compartment seal to stay dry and clean.

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When Should You Replace Your Vehicle’s Weatherstripping?

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Engine Control Module

An Engine Control Module, also known as the engine control unit, is the part of the vehicle responsible for controlling all the functions related to starting the engine. This means it’s in charge of petrol injection and ignition, the start-stop system, as well as turbochargers. You can typically find the engine control module in the engine compartment, however you can also find it underneath the seats or the passenger floorboard.

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Bad Engine Control Module (ECM): Symptoms, Repair, Replacement Cost

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Engine Control Module Relay

The Engine Control Module Relay is the main relay that enables and disables the power supply to the engine control module (ECM). It acts as a switch that is triggered when the ignition key is turned to the on position. Conversely, when the ignition is turned off, the ECM relay switches the power supply off so that the ECM no longer receives battery power. A relay that’s stuck closed means power will constantly flow to the ECM even with the engine turned off, effectively draining your car battery.

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Engine Coolant Overflow Hose

The Engine Coolant Overflow Hose is responsible for letting coolant back into the radiator’s reservoir tank. This is done to reduce the pressure buildup in the radiator and minimize coolant loss. The engine coolant overflow hose is connected to the radiator and the reservoir tank, which are found in the front of the vehicle’s engine compartment.

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Engine Coolant Pipe

Engine coolant pipes are similar to coolant hoses in that they carry coolant or antifreeze to the engine from the radiator and other cooling system parts. Unlike hoses, coolant pipes are made from steel or metal. Engine coolant pipes can come in various shapes and sizes, depending on the engine. These pipes are made from heat-resistant materials, as engine coolant can reach up to 220 degrees Fahrenheit. The pipes should also handle engine vibrations without failing or leaking. Otherwise, the engine would overheat and the vehicle would have major drivability issues.

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Engine Coolant Pipe Adapter

The engine coolant pipe adapter is a part that allows for engine coolant pipes of different sizes to be connected. You might need this if you encounter compatibility issues after replacing your vehicle’s coolant pipes. Engine coolant pipe adapters are mounted between the engine coolant pipes. Their tight fit helps prevent leaks. Engine coolant pipes require adapters to ensure differently-sized pipes can connect together without leaking.

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Engine Coolant Pipe O-Ring

The Engine Coolant Pipe O-Ring is a round gasket that seals the engine coolant pipe’s connection to the vehicle’s radiator and coolant hoses. In some vehicles, the engine coolant hoses feed from a main distribution pipe called the engine coolant pipe. To prevent coolant from leaking from this pipe, engine coolant pipe O-rings provide a tight seal between the pipe and the hoses. They’re usually made from elastomers like neoprene or silicone, but they can also come in plastic or metal.

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Engine Coolant Reservoir Mount

The Engine Coolant Reservoir Mount is a mounting component in the vehicle’s engine bay that holds the vehicle’s engine coolant reservoir. Like the coolant reservoir, the mount is made of durable plastic and can usually be found in the engine compartment’s upper right-hand side. It keeps the engine coolant reservoir in place so it can hold the engine coolant that serves to cool down the engine body. The mount’s design varies depending on the vehicle’s make and model.

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Engine Coolant Temperature Switch

An Engine Coolant Temperature Switch monitors the coolant temperature of the engine. Normally, a resting engine should have its coolant temperature switch in the “off” position. The engine coolant temperature switch should only open if the temperature is high.

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Engine Coolant Thermostat Housing

The Engine Coolant Thermostat Housing is a vital component that helps regulate engine coolant intake. It helps keep the engine from overheating by housing the engine’s thermostat, which in turn regulates the coolant flow. As the coolant flows from the engine block and head, it travels through the thermostat housing towards the radiator. Engine coolant thermostat housings can be made from different materials, including aluminum, plastic, and steel. They’re sometimes manufactured using sand casting.

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Engine Cooling Fan Module Relay

The Engine Cooling Fan Module Relay is an electromagnetic switch that regulates the power sent to the cooling fan.

The powertrain control module turns on the cooling fan whenever the engine temperature reaches a certain level.

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Engine Cover

The engine cover is usually a plastic cover that fits over wirings and other components. It serves more of an aesthetic purpose than a functional one.

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Engine Decal

Engine Crankcase Breather Cap

The Engine Crankcase Breather Cap is a valve that controls the pressure in the engine by releasing some hot gases. Also called the engine crankcase breather valve, this part might be needed if the current part causes issues because of damage or wear. The engine crankcase breather cap is mounted on a vehicle’s crankcase, and it acts as a controlled outlet that relieves pressure. The engine needs the engine crankcase breather cap to prevent excessive pressure that can blow out seals.

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Where Is the Crankcase Located?

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Engine Degreaser

An engine degreaser, also known as engine flush, is a cleaning formula that’s combined with the oil in the oil filter port.

The degreaser helps remove soot, oil, and other contaminants in the engine. Using it to degrease the engine is recommended before changing the engine oil.

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Maintenance

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Engine Dress Up Kit

An Engine Dress Up Kit is a set of components that help enhance the appearance of your engine bay. They typically have an air cleaner, valve covers, a timing cover, and different hardware.

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Accessories

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Engine Gasket Set

An engine gasket set includes all the gaskets you need to rebuild or overhaul an engine. These can include the head gasket, valve gasket, and intake manifold gaskets, among many others. These gaskets seal the joints between various engine components and prevent gases and fluids from leaking. If these gaskets fail, then your engine is going to have major issues. Engine gasket sets are made from durable materials like steel, stainless steel, or aluminized steel coated in rubber or a rubber compound.

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Engine Hardware Kit

The Engine Hardware Kit is a collection of parts used to assemble and secure engine components together. The inclusions in these kits vary, but a typical set will include camshaft bolts, camshaft eccentrics, cylinder head dowels, oil pump dowels, and woodruff keys.

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Engine Hoist

The engine hoist or engine crane is a piece of equipment meant to lift a vehicle’s engine or other heavy items. The engine hoist can lift a heavy engine using a hydraulic piston. The engine is hooked up to the hoist and lifted so mechanics can access components adjacent to the engine. Engine hoists are also the only way you’ll be able to lift an entire engine out of a vehicle’s hood since it can weigh hundreds of pounds. Removing the engine with an engine hoist is an easy way to service a component without completely disassembling the engine.

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DIY

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Engine Mount Bracket

The Engine Mount Bracket supports the entire powertrain. Brackets like this are designed to withstand extreme road conditions and driving maneuvers.

In most cases, one part of the bracket is bolted to the engine while the other is connected to the frame. The bracket’s material and design can also help reduce engine vibrations when driving.

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Engine Mount Isolator

The Engine Mount Isolator is the component responsible for minimizing engine and machine vibrations and maximizing load-carrying stability. Engine mount isolators accomplish this by dampening vibrations and transferring them to the vehicle’s frame. This component also minimizes the noise generated by the vehicle by reducing engine vibrations.

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What Is a Battery Isolator? How Does It Work?

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Engine Mount Support

The Engine Mount Support installs the engine mount to the chassis, keeping it steady and secure as it lifts the engine. The engine mount itself is responsible for connecting an engine to the frame of a vehicle. It absorbs vibrations and keeps the engine in place to protect it from potential damage.

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Engine Oil Galley Plug

Aside from preventing engine oil from leaking, the Engine Oil Galley Plug also diverts the oil into one of the oil filter passages so it can come back up to the other side.

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Engine Oil Pump Pickup Tube with Screen

An Engine Oil Pump Pickup Tube with Screen is a component of the lubrication system. It ensures clean oil is circulated through the engine to help maintain optimal performance.

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Tips on Oil Pump Replacement

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Engine Rebuild Kit

An engine rebuild kit is a set of parts that includes components like gaskets, cylinders, pistons, bearings, and seals. Engine rebuild kits contain parts that are usually replaced when an engine is torn apart and reassembled for service. Components like gaskets are replaced whenever the engine is serviced as part of preventative maintenance. The parts included in an engine rebuild kit can vary depending on the vehicle. However, most rebuild kits have head gaskets and seals.

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Engine Seal Kit

The engine seal kit contains various engine seals and other parts that are needed for replacing damaged and worn-out seals. This kit might be needed if there are leaks and performance issues from degraded engine seals. The engine seals included in the kit vary and are intended for specific parts like the auxiliary shaft. The engine seal kit will help restore seal integrity and performance in an engine.

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Engine Sealant

Engine sealant is a liquid compound that helps seal various engine parts and prevents or repairs leaks. This sealing compound might be needed if an engine part starts leaking coolant, lubricant, or oil. Engine sealant is usually applied to the part’s flange, and there are formulas for handling specific engine fluids. The engine and cooling system need engine sealant to prevent fluid loss.

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Engine Shroud Screw

The Engine Shroud Screw is a screw that secures your engine shroud, or the plastic cover that reduces noise in the engine bay. Aside from enhancing the durability of the engine shroud, they also improve its appearance. Engine shroud screws are usually made of stainless steel or other durable metal that’s resistant to corrosion. They can also vary in length and diameter. You can buy engine shroud screws individually or in a set together with the washer.

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Engine Shut Off Timer

The Engine Shut Off Timer is a modification that keeps the engine running even when the ignition is off. It’s designed to work on turbocharged engines, preventing turbocharger bearing failure. By keeping the engine running, the shut off timer allows the engine oil to continue circulating for a certain amount of time after the ignition is turned off. It keeps the bearing housing from overheating, which reduces wear on the bearings. Some timers can be set to allow the engine up to five minutes of extra idle time.

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Engine Splash Shield

An Engine Splash Shield is a panel underneath the vehicle’s engine to protect it from debris by preventing small rocks, water, or dust from reaching the engine. It’s only normal for the shield to get damaged, so you’ll need to replace it at least once during your car’s lifetime.

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How to Replace an Engine Splash Shield

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Engine Splash Shield Retainer

Engine Splash Shield Retainer

The Engine Splash Shield Retainer secures the engine splash shield to the underside of your vehicle.

A loose engine splash shield can expose crucial parts like the oil pan and transmission to debris and contaminants, which can cause them to fail prematurely.

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Engine Stand

The Engine Stand is a tool used by mechanics when working on the engine. It provides support and stability while keeping the engine at a comfortable height. Some engine stands also let the engine rotate to provide access to all the sides.

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Engine Timing Belt Tensioner Roller

An Engine Timing Belt Tensioner Roller is a component that helps maintain the correct tension on the timing belt to ensure it remains tight and doesn’t slip off the gear. The roller is usually a pulley that applies tension to the belt and keeps it running smoothly.Engine Torque Mount

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Timing Belt Symptoms, Diagnosis, Sample Replacement Steps

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Engine Torque Damper

An Engine Torque Damper is a self-contained elastomeric shock absorber located between the chassis and the engine. It reduces engine movement and vibration. Accelerating tends to rock the engine on its mounts, resulting in lost energy. The damp minimizes this, which improves throttle response.

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Engine Torque Mount

The Engine Torque Mount supports the engine and transmission by securing them in place within the engine compartment. It stabilizes the engine’s position in relation to the chassis to keep everything steady while the engine generates torque during acceleration or braking.

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Torque Strut Mount: What Is It and How to Know If It Needs Replacement

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Engine Variable Timing Oil Control Valve

The Engine Variable Timing Oil Control Valve is an actuator controlled by the engine control unit that alters the position of the camshaft depending on the position of the engine crankshaft. It controls the timing of the camshaft by allowing or blocking pressurized oil from the engine to flow.

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Engine Wiring Harness

The Engine Wiring Harness is a set of wires, cables, terminals, and connectors that control a specific electrical system in a vehicle. Also known as a cable harness, it relays electrical power and control information to different engine parts, such as fuel injectors, alternators, and fuses. Engine wiring harnesses reduce the risk of electrical issues, fires, and corrosion. They also protect wires and connectors from abrasions and vibration damage.

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Evaporative Emissions System Hose Assembly

The Evaporative Emissions System Hose Assembly helps trap fuel vapors, preventing them from escaping to the atmosphere. At the same time, the hose assembly also helps draw in fresh air and reroutes unburned hydrocarbons to the intake system.

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Evaporative Emissions System Leak Detection Pump

The Evaporative Emissions System Leak Detection Pump is a device used to seal the vent valve and pump air into the fuel system to keep it pressurized.

On most vehicles, the leak detection pump is vacuum-operated and acts as a part of the evaporative control system diagnosis equipment. The powertrain control module operates the pump.

The pump’s vent valve is normally open to draw in filtered fresh air. A leak detection pump that works for short intervals means that there is a large leak in the system. A longer pump period means there’s a small leak.

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Evaporative Emissions System Lines

Evaporative emissions system lines are small hoses that direct fumes from your fuel tank to various parts of the evaporative emissions control (EVAP) system. Since fumes are a pollutant, these gases from your fuel system need to be properly managed. Thus, these lines serve a critical function. The EVAP system uses lines to direct vapors into the vapor canister, which stores the fumes. When the engine is started, these fumes are directed to the engine, where they’re burned.

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Air Conditioning and Heating

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Evaporative Emissions System Pressure Sensor

The Evaporative Emissions System Pressure Sensor is a device that measures the pressure inside the fuel tank. Also called the fuel tank pressure sensor, this part might be needed if the current or stock part has worn out or failed due to an electrical malfunction. The evaporative emissions system pressure sensor is in a vehicle’s fuel tank, and it keeps track of pressure changes caused by fuel evaporation and purging. The evaporative emission control (EVAP) system needs accurate pressure sensor readings to determine how much fuel vapor is present in the tank.

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Exhaust System

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Evaporator Case Retainer

The Evaporator Case Retainer is a small component that holds the evaporator case in place. It helps secure the evaporator in the heating, ventilation, and air conditioning (HVAC) housing, allowing the evaporator to effectively cool and dehumidify the cabin air. Evaporator case retainers are typically made of plastic, and more than one secures the evaporator case. You can buy evaporator case retainers individually, or you can get them together with a new evaporator assembly.

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Exhaust Baffle

An exhaust baffle is a porous tube that goes inside your vehicle’s muffler. The baffle’s main purpose is to reduce exhaust pipe noise while creating minimal back pressure. Exhaust baffles can be beneficial for high-performance vehicles and help them reduce their noise levels without significantly impacting performance. An exhaust baffle’s effects can vary depending on its length. Short baffles impact noise levels less compared to long baffles.

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Exhaust Bolt

The exhaust bolt is a fastener that attaches exhaust parts and secures the exhaust system to the engine. If existing or stock exhaust bolts are worn out, damaged, stuck, or broken during repair and maintenance, they need to be replaced. Exhaust bolts are usually at flanged connections in the exhaust system. The exhaust system relies on these parts to keep them connected to the engine and prevent issues like vibrations and leaks.

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Exhaust Bracket

An Exhaust Bracket serves to connect various exhaust system components together. As connectors, exhaust brackets can link the exhaust pipe to the muffler and other such parts to one another. They’re made of metal and come in different shapes and sizes for their different functions. Some are simple metal brackets while others are more complex connectors with multiple screw holes and multiple parts.

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Exhaust Brake

The Exhaust Brake is a special type of braking system that slows diesel engines in vehicles by sealing the exhaust path from the engine. This compresses the gas in the exhaust manifold and the cylinders, slowing down large vehicles effectively and more quietly.

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Exhaust Clamp

The Exhaust Clamp is a metal holder that keeps various pipes in the exhaust system in place. They also serve to seal these pipes together to prevent exhaust gases from leaking out. While older exhaust clamps had a uniform design, modern exhaust clamps have evolved to suit different pipe connector types. As a result, exhaust clamps come in different sizes and designs. Hose clamps, u-bolt clamps, and v-clamps are some of the available exhaust clamp types on the market today.

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Exhaust Clamp Kit

The Exhaust Clamp Kit contains everything you need to secure exhaust parts within your vehicle without welding the components in place. This might be needed to prevent exhaust pipes and hoses from moving too much. Exhaust clamp kits eliminate the need for welding exhaust parts to metal surfaces to prevent the parts from moving too much. Various exhaust parts like hoses and pipes rely on the contents of the exhaust clamp kit.

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Exhaust Coupling Alternatives (No Welding Needed)

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Exhaust Collector

The Exhaust Collector, or header collector, is a type of pipe that channels exhaust gases from multiple cylinders into a single passage. This helps ensure a seamless flow of exhaust gases, which can improve exhaust flow, engine efficiency, and fuel economy. With an exhaust collector, there is less back pressure, allowing the engine to breathe easier. Exhaust collectors can vary in size, shape, and design, but most are made of heat and corrosion-resistant materials such as stainless steel.

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Exhaust Cutout

An Exhaust Cutout is a capped opening between a vehicle’s headers and mufflers. It directs the exhaust gases out the tailpipes through the mufflers, keeping the exhaust system quieter. When uncorked, the cutout pushes the gases through a Y-pipe instead, bypassing the mufflers and allowing the engine noise to escape. Electronic exhaust cutouts can be controlled to allow the engine to unleash its signature sound with the push of a button.

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Exhaust Damper

The Exhaust Damper, also known as the backdraft damper, is the part that controls the flow of air through the exhaust duct. This prevents harmful gases such as toxic chemicals and exhaust fumes from building up in the vehicle. It’s an important component of any vehicle’s HVAC (heating, ventilation, and air conditioning) system.

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Exhaust Flange

An Exhaust Flange is a piece of metal that connects two parts of an exhaust pipe. An exhaust flange typically requires a gasket, but it can also be attached using automotive-grade silicone.

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Exhaust Flange Gasket

An exhaust flange is used to connect the exhaust manifold to other parts like the catalytic converter. To keep the gap airtight, an exhaust flange gasket is placed between the two. Keeping the exhaust free from the leaks is important. Otherwise, the exhaust can create odd noises. A leaking exhaust can also reduce the engine’s power and fuel efficiency. Unlike other gaskets that are made of rubber, exhaust flange gaskets are made from multi-layer steel.

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Exhaust Gas Differential Pressure Sensor

The Exhaust Gas Differential Pressure Sensor is a component in a car’s exhaust gas recirculation (EGR) system. It’s usually mounted on the engine and has two tubes connected to the exhaust manifolds or pipes. The sensor sends information to the powertrain control module (PCM), which assesses the gas flow and regulates it using the EGR control valve.

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Exhaust Gas Differential Pressure Sensor Pipe

Exhaust Hanger

The Exhaust Hanger consists of rubber mounts screwed into the vehicle’s body to keep the exhaust pipe in place and prevent it from scraping along the ground. Exhaust hangers can last for years, with some lasting longer than a decade if the vehicle travels mostly on flat surfaces.

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Exhaust System Parts 101: The Basics (Diagram Included)

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Exhaust Heat Shield

Exhaust Heat Shields are used for thermal management. They protect the exhaust pipes, muffler, and catalytic converter to ensure they’re not damaged due to the high temperatures of exhaust gases. They also isolate the engine block to prevent heat damage to bodywork and internal components.

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Why Are Car Heat Shields Important?

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Exhaust Insulator

The Exhaust Insulator isolates and dampens vibrations and noises made by moving exhaust parts. It might be needed if you need to replace old or damaged insulators or install new exhaust parts. Exhaust insulators wrap around certain exhaust parts, such as the muffler, and they also insulate heat from the chassis and floor. The muffler needs insulation to prevent it from moving so much that it makes noise and produces vibrations.

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Why is My Car Making a Rattling Noise? Possible Causes

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Exhaust Manifold

The exhaust manifold gathers the fumes generated by an internal combustion engine and directs them toward the catalytic converter.

Sending the toxic nitrogen oxides produced during combustion to the catalytic converter where they are separated into breathable nitrogen and oxygen helps minimize emissions.

The exhaust manifold is usually under the hood and inside the engine block.

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Exhaust Manifold Clamp

The exhaust manifold clamp can help keep a vehicle’s exhaust manifold sealed and in place. Over time, a vehicle’s exhaust manifold can develop leaks because of broken studs or bolts. When this happens, you’ll notice abnormal noises and a reduction in power and efficiency. Installing an exhaust manifold clamp can be a good solution to reinforce the exhaust manifold and resolve the leak. Repairing the issue with a clamp might solve the issue with much less effort and fewer parts.

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Exhaust Manifold Gasket

The Exhaust Manifold Gasket is a part that seals the engine’s cylinder head and the exhaust manifold together, preventing hot gases from returning to the engine. This part might be needed if your vehicle has issues caused by exhaust gases escaping through a damaged or worn-out exhaust manifold gasket. Exhaust manifold gaskets are mounted between the cylinder head and exhaust manifold, where they help maintain pressure levels. The engine and exhaust system rely on the exhaust manifold gasket to keep their connection airtight.

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Exhaust Manifold Hardware

The Exhaust Manifold Hardware refers to the bolts and other components used to mount and secure the exhaust manifold to the cylinder head. Sometimes called exhaust manifold fasteners, they are often prone to cracking due to constant exposure to extreme heat and corrosion. They can vary in diameter, length, and material, but they’re typically made from high-quality metal such as stainless steel. You can buy exhaust manifold hardware individually, or you can purchase them in sets.

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Exhaust Manifold Washer

The Exhaust Manifold Washer is a small, round, metal plate with a hole in the center that serves to seal and spread load around an area in the exhaust manifold. This prevents the exhaust gases that flow through the exhaust manifold from leaking out into the atmosphere as the vehicle runs. To withstand the high temperatures and extreme pressures in the exhaust manifold, these washers are made from sturdy metals.

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Exhaust Mount

Also referred to as an exhaust hanger, an Exhaust Mount secures the exhaust pipes in place, reducing noise and vibration from being transmitted to the entire vehicle.

Exhaust mounts are typically made from rubber. These mounts are often exposed underneath the vehicle, so they’re likely to get damaged as you traverse over bumpy roads.

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Exhaust Pipe

The Exhaust Pipe releases exhaust from the vehicle into the air. It’s connected to the muffler and attached to the car’s rear end with a bracket.

Without an exhaust pipe, exhaust gasses would get trapped inside the car, leading to poor air quality. The pipe also helps reduce car noise.

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Exhaust System Parts 101: The Basics (Diagram Included)

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Exhaust Pipe Adapter

The Exhaust Pipe Adapter is an adapter that joins two sections of pipe in the exhaust system that each have different diameters. These adapters are manufactured using durable materials such as steel. This is so they can withstand the high pressures and temperatures within the exhaust system. The exhaust pipe adapter thereby creates a leak-proof, secure connection between the two pipes, which allows the exhaust gases to flow freely through them both.

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Exhaust Pipe Expander

The Exhaust Pipe Expander is a type of tool that’s used to widen and expand the diameter of the holes of exhaust pipes and mufflers. To make two different pipes connect, the sizes of the pipes will sometimes need to be adjusted to ensure they fit properly. Exhaust pipe expanders are also used to set pinched dents.

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Exhaust Pressure Gauge

The Exhaust Pressure Gauge is responsible for displaying how much pressure is being created by the exhaust. This information is measured by the exhaust pressure sensor and relayed to the engine control unit. It’s important for the exhaust pressure to be stable with a drive-to-boost ratio of 1:1. Boosting too much can damage the turbo since the pressure can become overwhelming.

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Exhaust Reducer

The Exhaust Reducer changes the size of the exhaust pipe when installed by reducing its length. This is mostly done to make connecting pipes of various sizes easier. The reducer is installed on the exhaust pipe, which can typically be found at the back of the vehicle in the undercarriage.

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Exhaust Spacer

Exhaust spacers are metal rings that are meant to extend a vehicle’s exhaust pipe length. The spacers are meant to slot in between exhaust system segments and typically come with the necessary fasteners to mount them to the exhaust pipe. Adding spacers can affect an engine’s performance and sound. Exhaust spacers can also bridge the gap if you remove your vehicle’s muffler.

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Exhaust Spring

The Exhaust Spring secures exhaust parts together, ensuring that the parts stay connected despite vibrations produced by driving. This part might be needed to replace a damaged or worn-out spring that causes issues like exhaust leaks, noise, and premature wear. Exhaust springs are attached to different parts, and they absorb vibrations and help prevent leaks. Exhaust manifolds, mufflers, and exhaust pipes are some of the parts that rely on exhaust springs to keep them connected.

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Exhaust System

The Exhaust System is responsible for redirecting exhaust gases from the engine to the vehicle’s tailpipe. It also helps lessen a vehicle’s emissions which can be harmful to the environment. On most modern cars, the exhaust system consists of the exhaust manifold, catalytic converter, oxygen sensors, exhaust pipes, muffler, resonator, and other parts. Unfortunately, the exhaust system can develop problems over time. Leaks, clogged parts, and loose components can cause the exhaust system to malfunction.

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Exhaust Temperature Sensor

The Exhaust Temperature Sensor measures the temperature of the exhaust gas. It transmits the data from its sensor probe to the engine’s electronic control unit. It’s connected to the exhaust line.

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Exhaust Tip

The Exhaust Tip is a cosmetic upgrade that can be installed on the part of the exhaust system that’s visible from the vehicle’s exterior. It can also change how the exhaust sounds depending on its size.

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Exhaust Valve

The Exhaust Valve is the valve through which exhaust gases leave the engine. Exhaust valves help regulate the sound your vehicle tailpipes emit. When the exhaust valve’s flap is closed, the exhaust will produce a quiet sound. In contrast, when the flap is open, the exhaust will be louder. There are different types of exhaust valves. Electronic exhaust valves are operated by the drive mode system of the vehicle, while the vacuum system valve relies on the pressure produced by the exhaust gasses.

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Extension Harness

The Extension Harness is a collection of electrical cables or wires that serves to connect various electrical and electronic components in a vehicle’s electrical system. These components include sensors, control units, actuators, and batteries. As an extension piece, the extension harness often attaches to a different harness in order to connect it to another part of the electrical system that the original harness might have been too short to reach, whether because of damage or from modifications made to the original design.

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Electrical

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Exterior Door Handle

The Exterior Door Handle makes it possible to open a vehicle’s door from the outside. Pulling on the handle moves the rod and its connected latch, opening the door and allowing people to enter the vehicle. These handles are commonly made of sturdy materials, such as steel or ceramic.

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