Q: Noisy aircon

asked by on

When aircon system had new compressor fitted system became noisy. If system regassed noise disappears for few weeks then returns. Small leake not yet found. Could loss of gas be causing noise?

My car has 47000 miles.
My car has an automatic transmission.

Hi there. Yes, a low refrigerant charge in the a/c system can cause the a/c compressor to make noise. The R-134a refrigerant is what carries the PAG oil throughout the a/c system. A low system charge, results in a lack of lubrication to the a/c compressor. Continued use with a low system charge, results in a/c compressor failure. There is a low pressure switch in the system, designed to prevent compressor engagement when the refrigerant level is too low. The small leak needs to be identified and repaired. I recommend having your vehicle’s noisy a/c compressor be diagnosed and repaired by a certified technician, such as one from YourMechanic.

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. Noisy aircon

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: I have a 2010 Merceds Benz C300, the headlight will turn off for a few seconds then come back on while I'm driving. what can it be

Hi Thomas. Thanks for sending your question today. Typically, this type of issue is caused by a loose headlight electrical harness or an electrical short somewhere from the light switch to the headlight itself. The best way to determine the...

Q: Car won't crank or turn over, cannot be jump-started

Hey there. This sounds like the starter or starter solenoid has failed. Given that jumping the battery does not work, it is more likely the starter solenoid. Have a professional mechanic, like one from YourMechanic, diagnose the starting problem in...

Q: Problem of my Ford ranger tdci 3.0L

Check for spark while the engine is hot and not wanting to start. If the coil pack has any cracks, they can spread when the engine is warm and cause a short to ground. Consider hiring an experienced technician to...

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...
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...
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...