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International Automotive Technicians Network
Re: ISUZU NPR glow plug operation
Posted to HD/Fleet Forum on 9/18/2002

Update; I got some more info from Snap-on; still not accurate; but helpful. After a lot of hunting around I did figure it out somewhat. I did a wiggle test to the sensors on the front of the engine.(all temp sensors or senders) I found 2 that had a broken wire... Login to read more.