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I recently rebuilt my 6.2 due to some cylinder problems. The truck started perfectly prior to me removing it. Now I have no glow plug relay control and there is 24v to the input side and no voltage to the relay solenoid when I activate the push button. I am getting the wait light to...

The no. 2 generator belt hits the lower radiator hose even though the belt is tensioned. Is there a shield out there that I can mount on the hose to keep it from getting cut?

I have a loss of power when my 6.2 M1008 reaches operating temperatures. I don't lose low end performance. I have driven it at speeds of 65-70 mph with plenty of pedal remaining but once it gets around 160 degrees I feel the truck get sluggish. If I stop and restart the truck it idles and...

I was on my maiden road trip with a 1986 M1008 when the wipers quit working in the rain. The voltmeter was in the mid-yellow but moved into the red after a few minutes. When I got it home I pulled the batteries, they tested good and were recharged. The alternators were pulled and they too...

I found a 1986 D30 but no data plate to tell what variance it was. Where can I find data to determine what variant I have?