1981 Stock Corvette - Engine "lundges"
Thread Starter
Instructor
Joined: Jun 2005
Posts: 135
Likes: 0
1981 Stock Corvette - Engine "lundges"
For the second time in 2 years, my 1981 Corvette lunged while in gear (automatic). Started car and kicked automatic choke down - running around 900 RPMs. Placed car up ramps to check under the car. While holding foot on brake pedal, engine started racing wildly - Tac indicated 7,000 RPM. I immediately put car in Neutral and shut off the engine. Re-started the engine and it seemed to idle back in the 900 RPM range although Tac was stuck at 7,000. Reved the engine in neutral a few tomes and the Tac went back to 800 RPMs. As stated, this is the second time in 2 years this has happened. Drove the car last weekend and everything was fine. Drove it today, and everything is fine. Has anyone else experienced a situation like this? I've re-checked the carburator choke setting, carburator linkages, throttle linkage, carpet, motor mounts, etc. and everything is OK. I don't think it's a mechanical problem e.g. Carburator, linkage, etc. Could it be the Computer Command System? I thought that only adjusted air mixture and timing advance and don't see whete even if fully advancing distributor it would race to 7,000 RPMs. Anyone???
