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Duramax-knocking-at-low-rpm

my truck spark knocks something awful. its a work truck and we bought two identical ones at the same time. the other truck has no problems and ...












duramax-knocking-at-low-rpm


Jul 23, 2013 — Anyone hear an slight irregular pinging/knocking sound at low RPM's, going up inclines from their 6.7? It sounds like metal against metal, but ... 3925e8d270





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