i just got a 82 burban with a 6.2 diesel, i dont know squat about this engine, i noticed first thing off the bat that when you "goose" the throttle it returns very very slowly, its especially bad when your pulling out or going up a hill...it seems the throttle just wont release when you take your foot off the pedal. it has a new injector pump on it...i bought it like that...is this normal and if not how do you fix it? its dangerous if you ask me...you have to stand on the brakes to slow it down if it does it...and it does it every time. PLEASE HELP!!!!! and how dependable are these engines...?