Q: My car is making a humming noise when press the gas

asked by on

While driving when gas peddle is pressed there is humminh noise that is coming from under the auto. Almost sounds like the tires

My car has 158000 miles.
My car has an automatic transmission.

Tires with irregular wear can cause a humming noise, just as wheel bearings or possible differential issues can. Here’s a way to possible narrow it down. If the tires are making noise, they can be heard outside the vehicle. Making sure you are in a safe area, if you drive next to a wall, curb, or other type of barrier with your window open, you will hear the tires making noise. This can generally be caused by irregular wear that created high and low spots. For example, make a fist with your left hand and run your open right hand against your knuckles. Then run your open hand across the tread area of your tires. If you feel anything like your knuckles as far as high and low areas, then your tires can be the cause. Rotating them so the wear evens out may help, but if the wear is bad enough, the noise may only change location rather than go away.

Wheel bearing noise is typically only heard inside the vehicle and will generally change pitch when the vehicle moves side to side, say when changing lanes on the highway. If that happens, then the front wheel bearings are most likely at fault. Rear axle noises will generally happen when it is under load, like only when accelerating. If the noise changes pitch when you are on or off the gas pedal, the source can be in the driveline - rear axle, driveshaft, etc.

If none of this helps, have a certified technician look into the driveline noise to isolate the exact cause.

Was this answer helpful?
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. My car is making a humming noise when press the gas

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: Clutch wont disengage 1993 Ford Ranger

Hello - first off, yes, the clutch disc "spring side" faces the pressure plate. Second - several problem could be causing the clutch to fail to disengage. A frozen, or failing pilot bearing can cause the same symptom as a...

Q: I just replaced my intake manifold , and my car is still shaking and won't accelerate quite right what should I do?

It sounds like you have a misfire. This can be caused by many things: a vacuum leak, ignition component failure, fuel system issues, etc. With a misfire, typically the Check Engine Light comes on to indicate that a trouble...

Q: Valve body solenoids

Hi there. Once a solenoid has been installed in a vehicle, it is linked with the ECU of that particular vehicle. So, in this case, the mechanics you've spoken to would be correct. The best solution here is to purchase...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...