2000 Chevrolet Cavalier Repair Question
Mileage: No information provided.
Chevy air conditioner blows hot when stopped
My car's air conditioner works great and blows cold when my foot is on the gas pedal. Once I step on the brakes, the air conditioner sounds like it's shutting off (makes a hissing noise) and then starts blowing hot/humid air. I can hear a groaning noise coming from somewhere below the car, but I'm not sure where it's coming from- just that I only hear it once the air blows hot when I'm on the brakes. Occasionally I can feel the brake pedal twitch under my foot, no matter how hard I hold it down, and it causes the car to jerk forward an inch or two. If I'm constantly on the brakes (stop-and-go traffic), the temperature gauge will rise pretty quickly and then eventually the red check gauge light comes on once the temperature gauge is almost maxed out. Once you step on the gas, the temperature drops back down, the check gauge light goes off, and the air starts blowing cold again like nothing ever happened.
Asked by kacydAnswer
With AC engaged condensor fan should come on, if condensor fan is not working, then cooling fan may also not be working.
When moving at speed air is blowing through condensor.
Brake problem is seperate issue.
AC issue could be fan, relay or fuse.
The response to this issue is incorrect. Although, I don't have an answer to what is wrong I can atest there is no braking issue. The brake feels a little softer when the compressor starts spewning the hot humid air while at rest. It is not a fuse issue either. Somehow the compressor is not working properly at an idle or low speed. I know my system is charged and cold air flows while moving. Can someone please help us with the correct solution?
I had the same exact problem, and the answer is correct.
When the AC is running the cooling fan will come on to push air across the condenser.
While moving air moves across the condenser, while stop if the cooling fan is not truning it will not push air across the condenser.
It cost me $326 to have my cooling fan replaced, now my AC and car both run cool