Summary The expansion valve lowers refrigerant pressure and meters it into the evaporator core.If the expansion valve gets damaged, the…
Summary Your vehicle’s thermostat regulates the flow of coolant between your engine and the radiator.A thermostat leak is usually caused…
Summary Brushing the radiator fins and flushing out old coolant are ideal ways to clean a radiator. The latter can…
Summary The blend door has an electric actuator that helps control its position.Most blend door actuators have a built-in feedback…
Summary The cooling fan relay is an electromagnetic switch that controls the power supply to the engine’s cooling fans. Without…
Summary Oil in the air intake or air filter housing almost always indicates a problem with your vehicle.Four common causes…
Summary Coolant and antifreeze are not the same. The antifreeze is usually made of ethylene glycol or propylene glycol and…
Summary The air filter traps contaminants within its fibers to prevent dirt from entering the engine.Some effects of a dirty…
Summary Before you replace the water pump, it’s important to consult the instructions for your application in a repair manual…
Summary A bad water pump can cause engine overheating, coolant leaks, malfunctioning heater, and an abnormal noise when the engine…