Skip the auto shop - Our mechanics make house calls

Q: My cars makes a rhythmic tapping noise while idling and the noises accelerates and loud end when my rpms go up,

asked by on

My car makes a very audible tapping noise when I'm idle and while I accelerate the noise quickens and loudens while my rooms go up. But while I coast or go on cruise the sounds is very tame, but while my foots on the pedal at all it sounds like hell, any ideas?

My car has 178000 miles.
My car has an automatic transmission.

Without listening to the noise myself and going on what you describe then I would have to say it is an engine piston rod knocking inside the motor. You should have a mechanic like one from YourMechanic listen to the noise and see if the engine needs internal repairs.

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!
  • Home
  • Questions
  • My cars makes a rhythmic tapping noise while idling and the noises accelerates and loud end when my rpms go up,

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: Transmission acting up

Hi. This slight delay in start your truck is effected by how well your truck intakes and ignites the fuel and air mixture. The delay and the "roll back" is common on your truck. The delay is intended to save...

Q: can a clogged catalytic converter blow out your valve gasket and make it not want to drive at all while in gear no matter how hard?

A clogged catalytic converter can cause the pressure inside the exhaust system to build high enough to burn exhaust valves and cause the engine to stall as it cannot get any air out. Failed valve stem seals along with high...

Q: Engine problems.

Hello. From what you describe it would appear likely that the backfiring and performance issues are a result of the fuel problem. A rich fuel mixture can be caused by a wide variety of issues. A few things I would...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.