[n2prise]

I read all these posts and I have something else to add. I have a 96 Deville with occasional idle problems. Half the time that this occurs, the air conditioning compressor goes off line and no cool air of course. I pull off the road, turn everything off. Sometimes this is all it needs. I feel like the car is running Windows XP with bugs or something. I run a diagnostic and get no codes. That is why the ISC motor thing caught my attention.

Any explanation why the AC compressor goes off at the same time the idle goes high? I have seen 3500 RPM with the transmission in neutral or park. ON the freeway, it is like the cruise control is set to 75 or 80 MPH.

I look forward to hearing any ideas.

Thanks!