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: I got my idle control valve and throttle position replaced a couple days ago, but now my car stalls.

Hello. It is possible that the part is defective, but most of the time this is because the computer has to relearn the new idle control valve. Sometimes, this can take a little while before it works correctly. It is...

Q: I have some individual issues in a car, battery replacement, and power steering fluid flush. How much do you charge per day/per hour.

Billing question sent to CS for power steering fluid flush, car battery replacement, and diagnosis full car repair.

Q: Why Won't My Car Start?

There are many reasons why your car may not start. Some common causes include a dead battery, faulty starter or starter relay, fuel pump issues, clogged fuel filter, and computer or sensor issues depending on the year of your vehicle....

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.