1991 GMC Truck Repair Question
Topics covered: Engine, Engine performance, Exhaust.
Mileage: No information provided.
Mileage: No information provided.
Asked on May 30, 2010
GMC Truck Engine Problem
Engine Performance problem
1991 GMC Truck V8 Four Wheel Drive Automatic
tbi 350 engine idle is too high and also revs up and down not giving any engine codes
1991 GMC Truck V8 Four Wheel Drive Automatic
tbi 350 engine idle is too high and also revs up and down not giving any engine codes
Asked by jmeachamAnswer
Replied on May 31, 2010
Hello,
Here are some possible causes...
Plugged Fuel Filter
Weak Fuel Pump
Vacuum Leak
Plugged Exhaust System
.
