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Re: Navistar with Vac Pump ( Not Running after 10-15Min.)
Posted to HD/Fleet Forum on 7/16/2008

Well, that's quite a code list....alot of stuff wrong based on that (possibly).

I'd personally start with checking the power and grounds for the ECM. They should run from the batteries thru the battery box, along the left framerail up to the ECM. They used t... Login to read more.