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: Clutch issues 1998 Mitsubishi Eclipse

Hi there - it sounds to me like your pilot bearing is seizing. When it starts to seize, it does not allow the transmission input shaft to stop rotating while the engine continues to turn. For the driver, this would...

Q: Lights flickering on car.

Flickering lightbulbs are usually caused by a loose connection try wiggling the connector of the problem bulb to see if thats the problem, a partially broken wire would also cause this symptom. Have a mechanic come an inspect and repair...

Q: AC, speedometer, and windows not working

Hello. Depending on how and when these items began to fail will make a difference as to what is going on. If they all occurred at the same time, then I would suspect an issue with the fuse box. It...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.