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Re: 2000 Isuzu NPR 4.8 Diesel won't Turn Off
Posted to HD/Fleet Forum on 2/4/2018

I've run across two different problems that prevented an Isuzu shut down.

First was a broken wire very near the connector plug on that shut down motor behind the front bumper. The four or five wires that go to that box are exposed there and mine had gotten s... Login to read more.