car is running/idling fine but when i turn on the ac, the car start to stutter and idle really lows. it feel like the car is about to shut off but it doesn't. when the car is moving everything is fine. thought is battery and alternator, so i replaced both. still have same problem. any ideas or suggestions is apreciated. TIA

 

This happened in my 4Runner. I set the idle a little higher and put a new batt/alt in it and it fixed the problem. My advice...turn off the a/c when at a stop. :D

 

ttt for more help