A tune up usually solves the problem. We've had the same problems with a Chevy Suburban and a Ford Taurus. The spark plugs were replaced, some stock parts in the Ford were also replaced, but ultimately certain parts in the engine needed to be flushed and cleaned. Also, the vehicle may be overheating. Check the radiator / Cooling system is working properly.
When alot of engine power is needed, the A/C compressor will be shut off to reduce engine load.
The AC fan keeps running after the compressor shuts off to help distribute the remaining cool air throughout the room and prevent the system from overheating.
Low pressure switch shutting the unit on and off. Possibly low on freon.
The AC is taking energy
no
If you have the selector knob on defrost it will also run the air conditioner compressor.
Quit playing with the switch...
iec
ac drain stopped up,ac is low on freon
Most likely is a bad ignition switch.
An engine usually has a higher idle speed when the ac is running. If the high speed idle does not operate then the ac will cause the engine to stall.
Engine running hot and cooling fan working to cool it down?