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.

A: There are a lot of moving components that c...

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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 Toyota Camry is knocking and ticking.

Ticking and knocking usually isn't a good thing. Does the speed of ticking increase with engine speed while sitting still? If so this means that it is coming from the engine. If the sound increase in speed on as the...

Q: Sudden pulling at speeds over 40

Hi There, This may be caused by a number of things such as worn control arm bushings, bad tie rod ends (as you suspect) or even a bad wheel bearing. Any of these components when worn out or loose may...

Q: A/C not blowing out forward facing vents

It's not possible for me to tell you what exactly has failed on your car. I can however set you down the right path. There are three components at work here. The mode switch that you turn on the...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...