Mechanics

GMC C2500 ENGINE PROBLEM

1989 GMC C2500 • 190,000 miles

Engine runs rough & burns gas bigtime. 10 MPG @ 70 - 73 MPH.
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Hammmerhead
November 7, 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-

Rasmataz
Nov 8, 2012.