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I know-OH GREAT-he has ANOTHER problem child to heal!

This one is a 1990 GMC K2500 Extra Cab 4X4;5.7L,700-R4  

The  PO says it quit him on the highway,he put a new fuel pump in it and it still wouldn't start. Here's what I've tried so far. I listened for the pump running,it did, dumped 5 gallons of fresh gas in the tank (The gauge showed empty),tried bleeding the lines to the T/B,the left pipe showed fuel,the right side pipe,not so much,(It was EXTREMELY tight,and the nut was rounded,it took a pipe wrench to finally get it loose),and that's about all I had time for. I suspect maybe

A-an ignition module

B-an ECM

C-a plugged fuel filter

Next will be checking the codes,which I SHOULD have started with,but I really expected it to be an easy fix.

   Other issues with this truck are 2 light bulbs out,the right fender scuffs the door,the left window (power) is missing a piece of the channel and the switch doesn't work,and the shift indicator doesn't work. I'd be surprised if the A/C works.

    Speed

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You do know how to find them, Speed!  This should be a solid truck, basic to work on considering the modern trucks...I'd try the fuel filter first and foremost.  This is the most common "suddenly stopped running" fix for EFI systems.  TBI is reliable and basic.  We can delve deeper if the filter does not do it.  Codes are always helpful, even on earlier OBD systems.

Moses

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The '90 GMC's a runner. I replaced the gas filter,which was plugged almost completely,but still no start. Next I pulled the ignition module and had it tested-it failed. I bought a new one and installed it and the engine started after about 3 seconds of cranking. Runs a little cobby,but I'm sure that's just stale gas. So far everything works except one back up light and one tail light bulb,soon to be replaced.

   Next,I'm working on getting the clutch hydraulics replaced on the '93 Ford Explorer I recently bought.

   Speed

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Your fleet is operational, Speed!  Yea...One GMC truck done, just the Explorer clutch hydraulics to go...Fast diagnostics and a ready fix on the '90 Jimmy!

Moses

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