Sounds like a vacuum leak or stuck IAC (Idle Air Control) valve. Try tapping on the IAC with a screwdriver or a small hammer. If the idle returns to normal the IAC is bad. Also, make sure the throttle cable isn't binding and preventing the throttle plates from closing. Check for a disconnected or broken vacuum hose too. Hope that helps! Jim
runs at 4000 rpm wont idle down
2002 Chevrolet Malibu LS FWD
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Maintenance & Repair
I have a 2000 Chevy Malibu that just randomly started idleing at 4000 rpms while in neutral and park and its idles at 1500-2000 in drive and reverse. I have already changed the air Idle Control Va...
2000 Chevrolet Malibu FWD
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Maintenance & Repair
I have tried to remove the #3 spark plug from my 2001 Malibu, with no results. It is very hard to get to that particular spark plug because there is not much room between the fire wall and cylinder....
2001 Chevrolet Malibu
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Maintenance & Repair
I've had alot of parts replaced in my car starter radiator fuel pump EGR valve coil pack just recently did a tune up and oil change and still my car shudders at a stop sign and red light what else ...
2001 Chevrolet Malibu FWD
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Maintenance & Repair
my husband changed my water pump and then my car starting rough idling and high rpm when it does this it running hot
2001 Chevrolet Malibu LS FWD
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Maintenance & Repair
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