Skip the auto shop - Our mechanics make house calls

Q: Does the AC clutch spin freely even if the car is off?

asked by on

Hot air started to blow out of the vents. Checked all the fuses and relays for the AC, they were good. I want to know if the clutch moves freely even if the car is off. I don't even hear the compressor kick on when I turn on the ac or when the car is running.

Hello, thank you for writing in. Most AC clutches are designed to spin freely when disengaged, and also with the pulley and compressor when those are engaged. If the clutch spins freely at all times, and the compressor never comes on, then it may not be engaging and therefore needs to be replaced. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect this for you, and make or suggest any repairs as needed.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Sometimes will not start.

With intermittent no crank conditions, you most likely have a bad connection in the primary starting circuit. This is the battery, the positive and negative battery cables and the starter. Even though you have replaced the starter, new or remanufactured...

Q: When A/C unit is off, vents still have air flow

This type of ventilation is typical on most cars. Try setting the controls to "Recirculate" mode and see if that helps. The Recirculation setting typically closes off the flow of outside air from entering the passenger compartment. At highway speeds,...

Q: Clutch and air conditioner compressor problems

Hello. It is likely that the air conditioner compressor is breaking your serpentine belt because it has seized up. I suggest that you have a trained technician replace your serpentine belt to get your car back on the road safely....

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.