Why does my car surge when I Turn on the AC?
It’s not at all unusual for the engine speed to drop momentarily when the AC is switched on, but if the engine starts to surge up and down, or even acts as though it’s going to shut off, there is something that needs attention. Air conditioning operates by circulating refrigerant through a series of devices throughout the car.
What to do if your air conditioner surges?
Air conditioning charging equipment is expensive and complicated, and there are a lot of environmental laws regarding handling refrigerants. If you suspect your air conditioner is not performing properly, and that is causing your car to surge, its best to have the air conditioning system checked professionally.
Why is my car surging with air pressure?
If the air conditioning is not performing well, the engine might be surging because the system is undercharged or overcharged. If it is overcharged, the load imposed by the compressor will be excessive. If it is undercharged, the AC pressure switch may be cutting the compressor on and off in rapid succession.
Why does my car air conditioner keep cutting off?
If it is overcharged, the load imposed by the compressor will be excessive. If it is undercharged, the AC pressure switch may be cutting the compressor on and off in rapid succession. Listen to the engine while it is idling and the AC is on.
Why does my GMC Envoy die when I Turn Off the a / C?
engine will begin to die when A/C is on and car in or out of gear. I turn off the A/C and it runs fine and if it goes dead it will crank back up with no problem. My 2004 GMC Envoy vibrates when I turn the air conditioner or heater on . It stalls while I’m driving it and it scares me and makes me think that I’m going to break down .
What was the problem with my 2004 envoy?
2004 Envoy.. When turned on A/C or defrost engine would stall & cut off. I turned off A/C or defrost, cranked & ran fine as long as both were off. Took to shop; had throttle cleaned.
Why does my GMC Envoy stall while driving?
My 2004 GMC Envoy vibrates when I turn the air conditioner or heater on . It stalls while I’m driving it and it scares me and makes me think that I’m going to break down . I just put a brand new battery in and it still stalls .
It’s not at all unusual for the engine speed to drop momentarily when the AC is switched on, but if the engine starts to surge up and down, or even acts as though it’s going to shut off, there is something that needs attention. Air conditioning operates by circulating refrigerant through a series of devices throughout the car.