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Old 07-12-2008, 12:25 PM
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yep, right when the trans shifts it knocks. Basically when there is little load on the engine and the revs are around 2-3000. Had this happen a couple of times. Ended up to be a weak oil pump (spring was bad not holding enough psi).
The fact that #1 is black would make me think a different problem. Hope you dont have to dig to deep and come up with maybes
Just having 15000 should not need ridge reamer.
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