No offense, but if you had mentioned the Jet chip earlier, we might have been able to help you diagnose it faster.

Maybe try putting a complete or mostly complete list of upgrades/modifications in your signature, along with your model year/4x4 or 4x2/engine/etc.

 

jet chips have caused problems before ? im not sure it was the chip, but maybe the corrosion. its also the only engine mod the truck has that im aware of.