heres the thing.... i was dinkin around and checking all what i could see.... thought id give it another crank... so i crank it over and its still not starting.... then i get a wild hair and decide to switch tanks... flip the switch and its starts. but it still feels like its idling a little rough on startup but then goes away... i drove it down the road and came back , ran like a champ, shut her off and tried again... she starts.. im not sure what the prblem is. i did notice that the cap under my fuel/water separator is leaking a bit andi cant tighten any more ... should i replace that ? could that b letting air into the system and causing it to idle rough?????????
Was the tank you were on in the first place empty?
I've had the same problem before, its happened to me 3 times. First time I started my truck up, and put my backpack in the bed (driving around some friends to lunch, so we needed the room in the cab). Anyways, was walking back to the cab, and all the sudden my truck idle's up for a sec, and then starts running really rough. I jumped in the cab and switched tanks, held the rpm's at 1200rpm's (smooth there compared to idle), and a minute later all was good.
This then happened another time.
The last time though, about 2-3 weeks ago, it actually shut off on me. I started my truck up, and then went to take the BBQ out of the bed (BBQ for lunch is pretty damn cool
). I was by the exhaust, when all the sudden my truck idle's up. I put the BBQ on the ground, and ran for the cab. Before I could get it, the truck shut off. I was like oh crap, now I gotta explain to my parents why my truck isnt running. I switched tanks, started turning it over, held my foot to the floor, and around 5 seconds later it started up. Idle'd a little rough, then even out.
It could have been that valve letting in air, but it sounds like you and me both have a bad fuel selector valve that is letting air in.
