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Re: 2000 Isuzu NPR 4.8 Diesel won't Turn Off
Posted to HD/Fleet Forum on 2/3/2018

If I remember right, theres a box on the front of the frame with a cable that goes to the injection pump. When the key is shut off, the box pulls the cable which pulls a lever on the pump and shuts the truck off. I cant recall what the box is called. Ive seen ... Login to read more.