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Re: Cummins ISB CM550 No start update
Posted to HD/Fleet Forum on 5/15/2014 1 Reply

Hello Joshua , I would use the 3163834 tool to isolate the pump. If it runs with the tool then the issue is with the harness or ecm. It is weird how the rpms are in range for it to be in a running state but its still in crank state. I don't know if the powertr... Login to read more.

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