i was driving a buddies dirtymax towing my car trailer up a fairly long grade. i reached the top of the 6 mile hill and the truck died and wouldnt re-start.
it sat for about 10 minutes and i switched two relays one being the high beams and the other was the F/PMP? and it fired right up and hasnt done it since. no codes thrown no running rough. any ides?

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oh its an 09/03 model year

 

Do your high beams work? Try changing it back and see what it does. If it does it again change the relay. Is the truck chipped? My edge chip would cause my truck to die every month or two randomly i had to send it in to get it flashed.

 

If it has a edge juice/attitude just take it out. These units seem to cause more problems than they are worth.

 

Im going to have to agree with Justin on this issue. Edge J/A are horrible on these trucks.