Re: 1973-1991 Dual fuel tank systems theory of operation
I knew I saved this thread for a reason. I am trying to figure a couple things out to troubleshoot my system. I have an 85 2wd C10 w/ saddle tanks. First, it was hard to switch tanks, sometimes not work at all and the fuel gauge isn't reading accurately. It isnt going past 3/4 on either tank. I noticed the dash switch was kinda sloppy so I replaced it. It helped the switching back a little but, the fuel gauge still isn't right. Filled up on the right tank yesterday and it went to 3/4 then, filled the driver's tank today and it went up to 3/4.... could this be the Pollack Valve or a connection issue?
I think its odd both tanks are reading the same error - what is the common denominator that would cause that to happen?
Also, it isnt the original motor... it has a 350 - no canisters or emissions hooked up to it. - if that helps.
Last edited by 808_67C10; 07-27-2018 at 08:09 PM.
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