Skip the auto shop - Our mechanics make house calls

Q: Belt makes noise after turning on air conditioning

asked by on

I recently had the air conditioner compressor worked on. Since then, when I turned on the air conditioning, the belt makes a loud noise. When I turn the air conditioning on and leave the fan running, it stops.

A: Hi. If your vehicle is only making noise wh...

Hi. If your vehicle is only making noise when you start the vehicle, it may be possible that there is a problem with the belt or one or more of the pulleys. I would recommend having a professional technician, such as one from YourMechanic, check the vehicle's belts for proper tightness. If necessary, the mechanic can remove the belt and check the pulleys for excessive wear or binding.

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・Save up to 30%

Get a quote

What others are asking

Q: AC making loud noise when on

Hello, your Subaru has a serpentine belt with an automatic adjuster and the noise with AC on indicates there is a problem with the compressor, not the compressor clutch. Since you just replaced the compressor, it may be that the...

Q: My car air conditioner is making a rattling noise when I turn on the fan. I wanted to know what the problem is?

Hi, thanks for writing in. The rattling sound and the fact that you're not receiving cool air indicates a possible problem with the AC condenser fan. If you use your air conditioning when the AC condenser fan is not functioning,...

Q: vibrations and steering wheel shimmy/shake between 45-60 MPH.

Hey there, thanks for writing in. You may want to have the CV (constant velocity) joints and axles inspected. When these wear out or become damaged in any way, this can cause a vibrating problem at both high speeds and...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...