My father has a 07 f150 5.4 3v and its making a knocking noise. Motor has 78k on it. Doesn't seem to increase with revs, only starts once it's warmed up. Could it be rod knock? Sorta immatates tapping your fingers on a desk going from side to side.
Also truck runs and drives fine. A dealership is saying the main bearing is shot and needs a new motor(6k) or short lock 1,500-2,500.
Truck doesn't do any heavy towing and is mainly driven highway.
Also truck runs and drives fine. A dealership is saying the main bearing is shot and needs a new motor(6k) or short lock 1,500-2,500.
Truck doesn't do any heavy towing and is mainly driven highway.
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