Rough Engine Idle with Air Conditioner Running October 10, 2015, 08:05:35 AM Has anyone dealt with the problem of the engine idling rather rough when the air conditioner is running. Once I pull off from a stop, she purrs like a kitten. At idle it pulses. Quote Selected
Rough Engine Idle with Air Conditioner Running Reply #1 – October 10, 2015, 11:11:53 AM Quote from: Alan87bird;451705Has anyone dealt with the problem of the engine idling rather rough when the air conditioner is running. Once I pull off from a stop, she purrs like a kitten. At idle it pulses.The idle is supposed to raise when the a/c is engaged. Does it go up, or does it drop from normal idle? Could be that the idle-air controller/bypass is maxed out and can't allow in more air, or not working correctly. It's also possible something is going on with the a/c compressor?Which engine does your car have? Quote Selected
Rough Engine Idle with Air Conditioner Running Reply #2 – October 11, 2015, 08:56:24 PM The engine is the V6. And, yes it does idle lower when the compressor kicks in. Quote Selected
Rough Engine Idle with Air Conditioner Running Reply #3 – October 12, 2015, 12:29:23 AM Take the air cleaner off and verify that the idle speed control motor plunger moves.Check the ISP motor adjustment. Quote Selected
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