Strange noises from your vehicle could be signs of various problems, so don’t ignore them. Determine their source, assess the situation, and implement the repairs or part replacements needed to address the problem. One frequently reported noise in older and high-mileage vehicles is the lifter tick.
A lifter tick is a tapping or “ticking” noise from the hydraulic valve lifter, a cylinder connected to the hydraulic valve.
How to solve a lifter tick depends on what’s causing it. Here are some of the problems that could trigger this unusual sound.
A damaged lifter can’t move as it should, preventing the valve from opening and creating a ticking sound. Unfortunately, the only way to fix this issue is by replacing the damaged lifter.
If the lifter is simply misaligned, realigning it could resolve the lifter tick. Make sure it’s neither too tight nor too loose.
If the spark plugs aren’t secured properly, exhaust gases might enter the engine instead of going out of the combustion chamber. This causes an exhaust leak that could sound like a tick. Retightening the spark plugs usually fixes this issue.
If the plugs are faulty, you might need to replace them. Doing so should let the exhaust gases out via the internal combustion engine. It also ensures they properly sit on top of the internal combustion engine, limiting the chances of misfires.
Exhaust leaks can cause a lifter tick-like sound, and the sound could be more audible at low engine rotations per minute (RPMs), especially if the leak is in the manifold or gasket.
A faulty gasket, an exhaust manifold crack, or a failed flange can cause exhaust leaks. One way to spot a leak is to look for black soot, which usually covers the area around the leak.
The valve train in the cylinder head is responsible for opening and closing the valve. It only opens when the exhaust valve closes, allowing the air to get in through the intake valve and letting the exhaust gases out of the combustion chamber through the exhaust valve.
Lack of maintenance could cause misalignment, which makes it difficult for the valve to open and close. This results in the clicking sound coming from the engine.
Some older car models have pushrods used in overhead valve engines to transfer motion from the camshaft to the valves. The rod could bend when damage or another component causes it to, leading to a malfunctioning lifter and engine tick.
Oil lubricates the motor and lets it run efficiently. If it’s dirty, its contaminants can obstruct the passage and restrict oil flow. This could prevent the lifter from maintaining the correct clearance for optimal operation, resulting in a ticking noise.
Fortunately, replacing the oil regularly (per the owner’s manual recommended interval or every six months) can prevent this problem.
Besides causing a lifter tick, contaminated oil can also give way to other issues, such as an overheating engine, poor fuel economy, and excessive smoke from the exhaust.
Low levels of oil can also cause lifter tick due to inadequate lubrication. Without enough oil, certain components can grind together and create damaging friction.
Regular oil changes also work wonders in preventing this issue. You can also use oil additives to help clean engine components, keep them lubricated, and prevent lifter ticks.
Engines run on different types of oil to ensure smooth operation. If you want to change your oil type, make sure you choose one that’s compatible with your ride and driving conditions. Otherwise, it won’t work properly, causing issues like friction damage and lifter tick.
For example, if you live somewhere with hot weather, get oil that’s viscous for better performance. Likewise, opt for the opposite type if cold temperatures are common in your area.
If you want to upgrade your oil, consider adding additives to it. They can modify its viscosity level, prevent sludge, and slow down corrosion.
The cost of fixing a lifter tick ultimately depends on what’s causing it.
For example, oil changes typically range between $30 and $100, while cleaning additives or dispersants go for as low as $7.
Expect to pay somewhere from $1,000 to $2,500 if you need to replace one or more lifters. For faulty spark plugs, new ones typically cost $100 to $500, depending on the vehicle.
You can still drive your vehicle while it has a lifter tick, but it’s not recommended. Disregarding it can lead to more problems, such as engine failure and misfires.
One way to prevent lifter tick is by using a good engine cleaner and getting an oil change.
Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.