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Re: 6.4L Part Time Runs Bad
Posted to HD/Fleet Forum on 7/25/2020 1 Reply

Bad IDM connection issue? Injector harness? Glow plug harness?

If it is moody, it is a connector/ wiring harness issue from my experience. Check harness carefully, because the IDM has a internal safety circuit built in the event an open or shorted harness oc... Login to read more.

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