does it "pop"? backfire? only when slowing down? how about 62-31? how about when you floor it?
if you push in the clutch will it stop?
does it have a clutch? gas or diesel? or porpane?
post up a pic of the g/f. that may help too.
year? 4 or 6?
bakes ajusted right?
been smoking anything ya should'ant?
any wireing truable?
What type of truck do you have, engine too?
