She died - Diesel Forum -
7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 2 (permalink) Old 12-15-2018, 08:26 PM Thread Starter
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She died

I've got an 89 Uhaul that had a 94 7.3. The engine blew about a year and a half ago.
I swapped in a 94 7.3 with a factory turbo, C6 and an aftermarket overdrive.
I got her running one week ago and she was purring like a dragon.

Yesterday i had her on the freeway when the engine died. No sputtering or coughing. It was like the the key had been turned off.

I found a blown fuse link in the main harness just before it connects to the gp harness.
I'm hoping it goes to the fuel shut off solenoid.

I replaced the burnt link and tried starting her.
The new link burned. Also, the "wait for glow plugs" light didn't come on.

Can anyone give me the pin layout for this plug?
The wire that's popping is the second from the right on the bottom row.
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post #2 of 2 (permalink) Old 12-16-2018, 01:47 PM
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You have a dead short to ground. I would start by checking the wire harnesses and look for melted wires, or some place something got pinched during the engine swap. There are two fusible links, one to the main wire harness, and one to the glow plugs

1993 F-350 crew cab non-turbo 5 speed transmission
35 years a mechanic on large stationary engines natural gas and diesel fired, and other industrial equipment.
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