Engine Performance problem
1992 Chevy Cheyenne V8 Two Wheel Drive Manual 180000 miles
I purchased the vehicle and it ran excellent for about a month or two. Then after a 30 mile drive I stopped at a store and shut it off. After leaving the store and about a mile or two later it started misfiring and running rough. I used trial and error with the emissions system on top of the engine, purchasing new parts, and checking hoses. The only thing that works is unhooking the hose that connects the map sensor to the back of the throttle body. It still stalls if you don’t keep the throttle slightly open and it uses a lot of gas.
Please help, my head hurts!
have the same problem?
Tuesday, May 12th, 2009 AT 12:51 AM