When the a/c is on, do you hear any unsusal noises from underhood?
Next time it cuts off, turn the a/c off and then see if the engine will start immediately (without having to wait several minutes). If so, suspect that the a/c compressor clutch is starting to go bad (locking down). When this happens the compressor is much harder to turn and places a heavy burden on the engine which could cause ot to cut off.
Wednesday, July 3rd, 2013 AT 6:49 PM