Question about 1985 Oldsmobile Delta 88

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My car drives itself, revs high when in park to point of stalling

Also has trouble when starting, sounds like it is going to stall, then starts to rev high

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  • Anonymous Mar 14, 2014

    starts revs high then stalls

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  • 962 Answers

Bad or dirty IAC( idle control Valve) Romve duct work from air cleaner. Spray throttle cleaner or carburator cleaner with car running at about 1000 -1200 rpms . Aim straight at the IAC inside the throat of the throttle body. It is to the side of the throttle body . Try to aim at the hole and spary 10 seconds into the throttle body. Turn of the engine and let it sit for a few minutes. Then repeat the process. If that does not work, replace the IAC.

Posted on Jan 09, 2009

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1997 chevy blazer... fuel pump turns on. have to prime to start it. when starts revs then stalls out


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High revs and surges when driving.


The revving to 2000 then dropping the 1500 likely means that it is in "limp home" mode. When there is a serious problem, the car will put itself in this limited mode to avoid further damage, and to get itself back home without stalling (hence the name). Since it stalls, its likely that there is a serious problem with the fuel system, and the limp home mode will not help you any more since you keep driving it like that. 
As far as the problem goes, it could be just about anything. Almost positive it has to do with the fuel system, but could be so many different things.
Hope this helps!

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