Q: There is a humming in park or drive but only when I push the accelerator not at idle.

asked by on

The engine makes a humming when you push the accelerator or when its winding down. It also will do it at standstill or when driving.

My car has 85000 miles.
My car has a manual transmission.

Depending on the severity of the humming noise and where it may be coming from, this may be related your exhaust vibrating on a heat shield or something else underneath the car. This is somewhat common when a catalytic converter begins to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and replace your catalytic converter.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. There is a humming in park or drive but only when I push the accelerator not at idle.

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: RPM needle moves up and down and then car shuts off when starting it. This happens intermittent. Runs good some days, others no.

Hello, thank you for writing in. With all of the various codes and systems being effected, you may be experiencing a vacuum leak. While everything the dealership did was understandable to some extent, a vacuum leak test needs to be...

Q: Green fluid leaking in the rear of car

You have a leaking rear a/c heater system core or hose for the rear unit. You will need to keep the rear heater turned off and keep coolant in the engine full to prevent overheating the engine. Have the cooling...

Q: PCV valve and scheduled maintenance

Any time an engine has been neglected like this you should not hesitate to do any repairs to start to get the vehicle back on it's scheduled maintenance. You should have the PCV changed and change the oil and filter...

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 Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...