horsepower question
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Joined: Aug 2007
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horsepower question
got a good one for you ive talked to a mechanic buddy and he cant seem to answer for me. 1983 6.9L everything stock. i can be driving down the road normal seems like not alot of power but then again its an old truck but all of a sudden its like haulin butt power for about 5 to 10 sec. then back to normal. any ideas what causes this?
