Car Questions
RepairPal is your advocate for car care advice and guidance

Air Conditioner Compressor Turns Off and On by Itself

(2002 Chevrolet Malibu)
in Satellite Beach, FL on October 20, 2009
I have a 2002 Chevrolet Malibu with recurring air conditioner problems. The air conditioner compressor shuts off by itself and comes back on by itself. My dealer first showed me a bulletin stating that cycling was normal to keep the unit from freezing. But I proved to them that was not applicable to my problem because it would occur when I first started the car during warm mornings here in Florida. Chevy replaced the controller, which helped briefly. But it's been getting worse again to the point where it very frequently turns off during hot weather and especially at lower fan speeds (though this also varies). Any suggestions?
Displaying 2 answers & 0 comments
Popular Answer
on October 23, 2009
The only way I can see to properly diagnose this problem is to monitor the A/C data at the powertrain control module (PCM) and the body control module (BCM) using a scan tool while the problem is occurring. Looking at the BCM and PCM data items will allow the technician to begin to isolate the cause of the fault. Due to the complexity of the A/C controls in your 2002 Chevrolet Malibu the scan tool is necessary to help determine the area of the A/C control system that is causing the fault. Once the area of the fault is determined more isolated diagnostic procedures and be used to find the exact cause to the problem.
on September 07, 2010
It sounds like you have a low refrigerant problem. I would take it in and have it checked for a refrigerant leak. If there isn't one present, then your accumulator's desicant bag might be bad leading to too much moisture in the system. I would have the accumulator replaced and the recovery and recycle should be part of the labor. If your still experiencing problems have the electrical checked, but more than likely it's a refrigerant leak, which means you should have the accumulator replaced anyways when the problem is fixed at your a/c shop.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
My air conditioning in my 2012 Kia Optima EX GDI non turbo runs fine while driving at higher speeds but at a stop lig...
Air conditioner set on 60 with the lowest fan setting (blowing on face) While driving the fan blew at high all by it...
Didn't find what you were looking for?