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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Fuel wiring issues

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Old Mar 26, 2025 | 01:33 PM
  #1  
88red250's Avatar
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Fuel wiring issues

Pulled this 88 f250 out of a swamp it’s been sitting in for 7 years and got it running on starter fluid but I’m not getting fuel. Went underneath and saw some chewed wires. 88 f250 5.8 Windsor with duel tanks and the high pressure pump. Anyone got a schematic on can see to see what goes where? At a loss at the moment and want to see er driving again
General wires around the area
General wires around the area
Chewed wire
Chewed wire
Chewed positive and ground
Chewed positive and ground
 
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Old Mar 26, 2025 | 03:36 PM
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Just unwrap the harness until you find it. Repair it. Tessa tape. Split loom. Run it. Get a good light so you can see. You are most of the way there just finding it.
 
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Old Mar 27, 2025 | 04:19 AM
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I think I have a 1988 EVTM
1988 F250 with a 5.8 = almost enough info
What trans does it have?
Most all of those diagrams are different, for different engine and trans combos
 
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Old Mar 27, 2025 | 07:23 AM
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I put NO stinkin' badges by my name, yet they showed up anyway?
Never wore any of my ASE or Ford Masters program patches either, (none of us did)
Nonetheless, here are the EVTM pages you need
Trans and engine matters NOT on your particular '88 for the correct schematics



 
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Old Mar 27, 2025 | 08:08 AM
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Here is a dual tank diagram for a 1988 gas engine truck:
 
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Old Mar 27, 2025 | 11:58 AM
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Originally Posted by manicmechanic007
I think I have a 1988 EVTM
1988 F250 with a 5.8 = almost enough info
What trans does it have?
Most all of those diagrams are different, for different engine and trans combos

4 speed manual and 4x4
 
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