I have a 2003 6l diesel. The windows will work sometimes and then they quit working. Also have had a problem with the backup sensors doing the same thing. They will go for a few days working fine and then they quit. Any ideas would be appreciated.
Oaky seriously, intermittent crap is hard to find.
A relay that is tired, but works on occassion?
If its temp related, it could be something with a poor conduct say when cold, but heat expands it enough to make contact.
A wrire thats worn thru the insualtion, and bumps jar it free and it works, then it goes back to being shorted out.
Could be a million different things really.
I would get a multi meter and start checking wiring and relays to start with.