Q: AC compressor idler pully won't spin

asked by on

I put on the belt that connects to the Ac compressor but the pully on the Ac compressor won't spin idk why

My car has 130000 miles.

The AC compressor pulley or compressor clutch has a bearing inside of it that enables the pulley to spin without the clutch being engaged. When the air conditioning is turned on inside the vehicle the compressor clutch will engage and begin to spin with all of the other pulleys. If the compressor clutch does not kick in when you turn on the air-conditioning your AC refrigerant could be low. If you would like to have the AC system checked, a qualified professional from YourMechanic can come to your car’s location to diagnose the compressor and pulley.

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. AC compressor idler pully won't spin

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: Knocking noise. Is it a problem with the belt?

Hello - No, it is incorrect to assume that you couldn't install the new tensioner even though it is of different length. Was the new tensioner longer or shorter? If shorter, there may not be adequate tension on the belt,...

Q: Is there any reason that a transmission fluid leak issue has to do with needing a a/c compressor replacement? 2008 Jeep Liberty

Hi there - these 2 faults are NOT connected. A transmission fluid leak will not cause AC compressor failure. You are not getting good advice from whoever told you this - not to be trusted. A transmission fluid leak can...

Q: Q: VDC & SLIP LIGHTS ON

Hello. The ABS and traction control / VSC fuses and relays would be the ones to check. There may just be one main ABS relay that powers all of the systems. U1000 and U1001 are codes indicating that a computer...

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...
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...
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...