Skip the auto shop - Our mechanics make house calls

Q: Ticking noise coming from throttle body area.

asked by on

For some time now when the engine gets warm a ticking noise occurs when accelerating. The sound sounds as if it's from the top of the engine toward the throttle body. When slowly accelerating at low rpm it begins to rattle. When it rattles if I give it gas it stops. The noise only occurs if I'm just revving, if the RPM is sitting at idle and I nudge the gas.

My car has 105000 miles.
My car has an automatic transmission.

There are a lot of moving components that could make that noise. Improper valves can make that noise but I feel like you may have a lifter that is partially plugged, preventing normal oil pressure from fully pumping out the lifter. Once you start to accelerate, there is more load put on the lifters as they try to move faster. If the oil flow is not sufficient, the lifter will not fully pump up and will cause the noise you hear.

Change the oil and make sure you use the exact oil viscosity rating specified for your vehicle. The thickness of the oil contributes to this problem. You may also want to use an internal engine cleaner that is added to the oil before the oil change. It may help clean those tiny oil passages that can cause slow oil flow to the lifters. If you want to have this looked at, a certified pro from YourMechanic can come to your car’s location to diagnose the noise and help have this repaired.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My vehicle runs or idles rough. I was told that is normal, is it? And what are the signs of the transmission going out?

With a vehicle as new as yours, the likelihood of a transmission issue would be fairly slim unless damage has been done. The clanking and the rough idle may be the cause of the jerking motion. You should turn your...

Q: The car makes noises while making a turn to the left

Depends on what are the noise is coming from. If it is from the front end, then it's likely a worn suspension component such as a sway bar link or a steering component like a tie rod end. From the...

Q: Clutch

You need to check to see if the clutch fluid reservoir is full and that you can see the clutch release lever moving. If it is moving and the clutch will not release then the pressure plate is bad and...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...