I had a '82 C-10 shortbed with a 6.2L and a 4spd manual OD trans. It ran like a top for me. I sold it after getting a newer truck.
It left it's new owner stranded in the middle of no where a couple weeks back. She proceeded to melt the insulation off the battery-starter cable while trying to start it. That managed to screw up the connection between the main positive feed to the rest of the truck.
After much head scratching and cursing of GM engineers,
I figured out why it wasn't getting power. Then I cracked an injector fitting loose and cranked it over until it got diesel squirting out of the loose fitting. It cranked fine but wouldn't start on the starter. It did fire up and ran great when we pull started it.
I replaced the burnt cable, re-routed the main positive feed directly to the positive battery terminal, and back-flushed the fuel lines from the tank switching valve to the tank with lots of compressed air (even remembered to take the gas caps off so I didn't rupture the tanks).
The truck ran awesome after that. The power used to die off after 3,000 RPM(guessing, no tach), but after flushing the lines out it kept pulling pretty good all the way up. I figured maybe the pickup screens were clogged and restricted fuel flow.
Tonight she called me from the side of the road yet again. Same issue, it just died out and wouldn't start. I'd installed a small electric diaphram pump before the big, under-hood filter, and I instructed her on how to empty the water trap in the filter and bleed the air out using the pump to get the air out of the filter. No avail, it still wouldn't start. It's deffinately not out of fuel this time.
Any ideas? Any last things I should try before dropping and cleaning out the tanks, pressure testing the fuel lines for leaks and replacing the filters? (I replaced them about a month before I sold the truck, they should be OK).
Out of curiousity, where is the valve that shuts off the fuel when you turn off the ignition? Is it on the pump it's self or what?
Sorry this post is so long
Mike
It left it's new owner stranded in the middle of no where a couple weeks back. She proceeded to melt the insulation off the battery-starter cable while trying to start it. That managed to screw up the connection between the main positive feed to the rest of the truck.
After much head scratching and cursing of GM engineers,

I replaced the burnt cable, re-routed the main positive feed directly to the positive battery terminal, and back-flushed the fuel lines from the tank switching valve to the tank with lots of compressed air (even remembered to take the gas caps off so I didn't rupture the tanks).
The truck ran awesome after that. The power used to die off after 3,000 RPM(guessing, no tach), but after flushing the lines out it kept pulling pretty good all the way up. I figured maybe the pickup screens were clogged and restricted fuel flow.

Tonight she called me from the side of the road yet again. Same issue, it just died out and wouldn't start. I'd installed a small electric diaphram pump before the big, under-hood filter, and I instructed her on how to empty the water trap in the filter and bleed the air out using the pump to get the air out of the filter. No avail, it still wouldn't start. It's deffinately not out of fuel this time.

Any ideas? Any last things I should try before dropping and cleaning out the tanks, pressure testing the fuel lines for leaks and replacing the filters? (I replaced them about a month before I sold the truck, they should be OK).
Out of curiousity, where is the valve that shuts off the fuel when you turn off the ignition? Is it on the pump it's self or what?
Sorry this post is so long
Mike