1990 GMC Truck Repair Question
Topics covered: Egr valve, Fuel pressure, Gas.
Mileage: 100,000 miles.
Mileage: 100,000 miles.
Asked on December 9, 2012
GMC Truck Egr valve Problem
Hi I have a 4.3 small truck and the motor races when started I changed the carb base gasket,carb idel up sol,computer temp sender,even blocked the egr valve any ides.
Asked by (pending member)Answer
Replied on December 9, 2012
scan for codes and check fuel pressure first. check for a vacuum leak
