Q: What is the grinding sound coming from passenger side of engine

asked by on

I hear a grinding sound on my passenger side of the engine why?

My car has 228000 miles.
My car has an automatic transmission.

It sounds like this may be related to a couple of different possibilities. This could be a bad idler pulley bearing, which is a bearing inside an idler wheel that the serpentine belt rides on. When these bearings wear out, they sometimes produce a bit of a grinding sound.

The other possibility may be a failing AC compressor, which may also produce a bit of a grinding sound as the bearings inside the compressor begin to fail. When this happens, you may also notice other issues with the AC not working properly or potentially the engine overheating due to the additional stress put on the motor to turn the compressor with bad bearings. I would recommend having an expert from YourMechanic come to your location to diagnose and repair your vehicle.

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. What is the grinding sound coming from passenger side of engine

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: 2013 Ford Fiesta has some weird clicking noise.

Hi there. The clicking noise could be coming from the brake pads shifting around when the brake pedal is released. The fluid noise could be just fuel in the tank sloshing around if your fuel level is low. I recommend...

Q: Q: Car not turning over.

The starter is the most likely problem with your no crank condition. I would check for proper power getting to the starter main power cable and also a good signal to the small wire at the starter from the ignition...

Q: Car has battery power but won't start

The battery condition can only be determined using a professional "load tester". Battery stores will perform this test for free. A volt meter is not the appropriate tool. If you used a load tester and the battery passed, then the...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
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...