Had an issue with alternator randomly losing the battle to charge the battery. Had to have it jumped one time, but it would go into the danger zone and then randomly pop back into charging mode. Happened again on a Friday on a 100 mile drive from home. About 30 miles out it started happening, I did make it but had gone into "charging system not working" mode. I decided on a whim to start the truck and open the hood. Had a wrench in the truck an used it to bang some of the salt and dust from it, nothing happened. I decided to move wiring harness over to get a better position to take it off and low and behold the truck started charging. Went into my gig and 5 hours later came out (25/F) and it started like a champ. Time to replace the harness.