My brother and I dug into this issue Monday and found the problem. We found two shorted wires near the electric connector attached to the fuel pump and fixed that, but it didn't solve the main issue of no fuel. So, we dropped the tank and pulled out the sending unit/pump. What we found was surprising, the hose that once connected the pump to the sending unit was completely melted away, must not have been rated for use in fuel. It was like the consistency of fresh caulk that had just skinned over. Also, the tank is rusted pretty bad inside. The plan now is to replace all of that and go from there.
mbmoehl,
Welcome to the GMT400 forum, and what a great way to introduce yourself!
Sincere thanks for taking the time to close this repair loop & sharing that
sharp photo of the failure.
Your photo is easily worth a thousand words as a heads up of how the
outside can look road trip ready while the internals have completely
disintegrated. (!)
Given that being broken down on the side of the road today (with people
speeding by while glued to their phones) is so unsafe, if you have brought
an old truck back to life after sitting for years and you've only looked at
the condition of the external lines, make it a priority to verify that this
potential showstopper isn't in
your tank.
The difference in condition
on the same part is dramatic:
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And if you are reading this yet can't talk yourself into dropping the tank and visually inspecting your pump
(and you drive the truck farther away from home than you are willing to walk back) ...then
at least run a fuel pressure check and react accordingly.
Again, thanks for your highly informative photo & sharing your fix.
Safe Travels --
EDIT: I just looked at your avatar, and it looks like your statue is sporting a Devo energy dome?
Man, that brings back some memories...