Q: My a/c compressor is rattling

asked by on

My a/c compressor is making a rattling sound every time I turn it on.

My car has 121189 miles.
My car has an automatic transmission.

There may be a few reasons your compressor can rattle. First the noise will have to be determined to be internal or external to the compressor. If the noise is internal then it is most likely a bad compressor. If the noise is external then you may have a bad tensioner or pulley when under a load. A internally noisy compressor can be due to lack of oil in the compressor and is going bad. If you decide to get this fixed, consider YourMechanic, as a certified professional can come diagnose the issue with your A/C and help you fix it accordingly.

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 a/c compressor is rattling

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: Car only starts when I pump the gas pedal.

From this description it seems that there could be separate issues happening to your Mitsubishi Eclipse. The three most common reasons I see for a car unable to start without pushing the gas pedal include; the throttle body gasket may...

Q: Engine stumbles around 3000 RPM.

Hi there. The engine could be stumbling for the coil pack or distributor may not be functioning correctly. As the coil pack or distributor gets old, the parts tend to become weak and is not able to send an electrical...

Q: What would cause all of these electrical problems?

It is difficult to say what is going on with your Vue without being there. This will likely have one problem that is causing all these issues. The removal of the BCM has probably made this more difficult to diagnose...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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.