1989 GMC C2500 Repair Question
Topics covered: Engine, Compression, Gas.
Mileage: 190,000 miles.
Mileage: 190,000 miles.
Asked on November 7, 2012
GMC C2500 Engine Problem
Engine runs rough & burns gas bigtime. 10 MPG @ 70 - 73 MPH.
Answer
Replied on November 8, 2012
How's the engine compression? If okay give it a major tune and see what happens-low engine compression won't benefit from a tune-up-gas eater can be caused by any sub components of the vehicle-such as tires/wheel alignment/brakes/transmission-etc and the list goes on-