Skip the auto shop - Our mechanics make house calls

Q: Rattling sound from AC compressor.

asked by on

I hear a rattling noise from my AC compressor. It sounds like it is coming from the wheel. It turns and then it stops, and then it makes the noise.

A: The noise you hear may be the internal comp...

The noise you hear may be the internal compressor problem with the swash plate and pistons if the noise you are hearing is when the compressor is engaged. If the noise you hear is when the compressor is not engaged, then it may be the pulley bearing is bad. Either way I would recommend you have a qualified mechanic to do a complete a/c inspection to see if the compressor is leaking or the failure cause. If it is the compressor then other components would need to be replaced with the compressor for a complete repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

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: Weak heater, is this a defect?

Having a poorly performing climate control system can be difficult. From what I've found, Nissans generally don’t have the best performing climate control when it comes to the heater. You'v stated that it can blow cold on one side and...

Q: Loud rattling from rear

The information provided leads me to believe that the rattling noise you are experiencing in your Chevy Impala is the rear stabilizer end links failing. It can be difficult to identify a noise problem without physically driving and inspecting your...

Q: Engine runs at 4000 rpms shuts off get a P2074 code

There is a technical service bulletin 18-007-08 that covers this code and calls for a reprogram of the PCM to fix the issue. You should have the reprogramming done first before replacing any parts for this code. The P2074 code...

Related articles

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...
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...