Skip the auto shop - Our mechanics make house calls

Q: Cars stalls when the AC is turned on.

asked by on

I was told I need the AC compressor replaced because my car stalls when the AC is turned on.It also stalls when I turn on the defroster.

A: A seized AC compressor can stall your engin...

A seized AC compressor can stall your engine when you turn on the air or defroster because it sends a signal to engage the clutch on the compressor, which causes more resistance than normal. But there are switches that level out your idle electronically when there is increased load. Have a certified mechanic like one from YourMechanic test and verify that your idle control system is working correctly and that the AC compressor is the only problem.

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: If I go through a puddle, even one that is not deep, my engine stalls out. Mechanic told me to avoid puddles.

Hi, thanks for writing in. A lot time when this happens, it is due to a bad belt, or the belt is being soiled by oil and fluid from the car. The belt tensioner also could be weak, allowing the...

Q: ATF drain and fill or not?

Changing the transmission fluid and the transmission filter could extend the service life of the transmission. Be sure to change the filter though. Use a NEW pan gasket, preferably the Toyota OEM (dealer supplied) gasket. Synthetic fluid is recommended. I...

Q: why does the heated side mirror drivers side not work

Hi. There are a couple of reasons why your driver's side heated mirror is not working. The first thing that comes to mind is the fuse for the heated mirror has blown and is causing it not to work. Another...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.