Trying to fix my son's car. 1990 Chevy Cavalier 2.2 4cyl. No idea on the milliage. But its lots I am sure.
Anyway, the the thermostat stuck closed and overheated thus blowing the head gasket.
We surfaced the head and replaced the gasket. Reassembled and the engine started first time.
except that the idle just kept getting higher and higher. It sounds like the throtle is wide open.
after alot of reading we tried to clean the IAC Valve. This seemed to help the first time we started the engine. But the second time it started all over again. So we replaced the IAC.
Still races. Engine run fine and we only had one other problem. During the repair we noticed the belt was getting worn so we replaced. My son drove the car to work (with the bad idle) and the water pump failed. We replace and no leaks no nothing wrong.
Any help or ideas or troubleshooting help is much appreciated.
Thanks in advance
have the same problem?
Thursday, January 25th, 2007 AT 2:04 AM