Hey guys, I've got a 1979 Chevy C10 with the 350 SBC and dual tanks. The dual tanks have worked beautifully ever since I bought the truck two years ago, no problems there at all (except for a leak in the right side that has been fixed). It's got cold here in Canada and the truck was having some trouble starting last week. No problem, I gave it plenty of time to warm up. I should say more specifically, it would start up fine, but the problem was keeping it running. It would shut off and then only brake cleaner would get it going again. Odd that it would start fine with just a few pumps of the pedal the first time, and then require some brake clean afterwards. And it has never needed brake cleaner before. Even on the coldest days.
Mind you, I'm saying it's cold here. It's about freezing, 0C most mornings. This truck has easily started at -30C before. Few pumps and foot on the gas and she's good to go. So this has been really strange behaviour.
Then the other morning, it started up fine, died as usual, and never came on again. Even with brake clean. I tried again later that afternoon and it wouldn't start. So I got to work testing things and disconnected the fuel line. No fuel was coming out of it when cranking so I figured that was my culprit and bought a new fuel pump.
I installed that today and still nothing. And it's not like I haven't been cranking it for a while to try and get it going. What is going on here? And it still won't start even with brake clean. Which should be my indication that it's not the fuel, or at least not just the fuel. It should definitely fire off at least on the stuff, and it's not even doing that.
So I'm at a loss here. I don't know anything about the switching system for the two tanks. But I'm starting to suspect my problem may be further back with that system. How do I test it? Any suggestions for me on this one? Or is it something else other than the fuel entirely? But that wouldn't explain no fuel from the pump...
Any help is greatly appreciated.