OK, I'm thinking it might be the starter interrupt but not sure. Or, the truck '01 Silverado has PMS, about once a month, it won't start. First time it happened, I took the car to work and forgot to check it that night and the next morning - it started. Next time it happened, I replaced the battery (the next day) and it started. It's happened about three times since then, and today is one of those days. No power is getting to the starter. Is there a starter interrupt module? Dealer can never get it in same day - the next day it starts and they can't reproduce it.
Any advice, opinions, thoughts, guesses would be appreciated.

 

Sounds like a starter relay. Does you hear any noise from under the hood, like maybe a relay clicking, or even your fuel pump priming? Could also be an engine ground issue. I had one burn up on my old truck and would have same issue depending on how well ground was touching frame.

 

i agree with smoke, that ground can really mess with you...check and make sure all the ground wires are on tight...make sure there is no acid on your battery either...

 

The battery terminals were causing the same problem on my truck a sporadic no start. I replaced them and it fixed the problem,