7.3 IDI F250 solenoid wiring diagram - Diesel Forum - TheDieselStop.com
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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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Old 02-12-2012, 06:10 PM   #1 (permalink)
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7.3 IDI F250 solenoid wiring diagram

Good evening:
I am in Haiti with a 1992 F250 7.3L IDI Diesel . There are no dealers or garages who understand a 7.3 diesel F250.
I had to change out the battery wiring harness and have 2 dilemmas.
1. where may I obtain a wiring diagram for the solenoid??
2. How do you tighten the starter/solonoid cable at the starter??
I have tried every size "tork" bit I have and have had no success.
I am not a mechanic but with the help of folk like you in the USA I have been able to keep me trucks running for 32 yearsm but now I am at a loss. I have searched the forums on thios site as well as other sites but find no help. Thanks for taking the time to read and hope you can help.
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Old 02-12-2012, 09:10 PM   #2 (permalink)
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Wire from the ignition switch energizes the small terminal on the start relay after passing through an interlock switch, wire is red/light blue. it should be the same color all the way back from the relay through the interlock to the ignition switch on the column assembly. Cable from the D/S battery passes to the P/S battery and from there feeds the starter relay and heads to the starter. Starter relay energizes the starter solenoid.

I don't know if any of our old school buses from the USA have gone to Haiti, they certainly have been sent to a lot of other countries. If so, whoever services those will be probably be able to service your truck. In general most of the older long-nose school buses seem to be international IDI V8 powered while the flat-face ones are pushers with Cummins.

I have a Nippon Denso starter and the hot lead mounting is different from the stock unit. It's sold as a "heavy duty" starter for the same motor in applications from Caterpillar etc. Bolt-on replacement. So I'm afraid I can't help you there.
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1992 F250 XLT 4x4 Super Cab 7.3 IDI E40D 3.55 ATS 088 4"R.C 360k
1982 MBZ 300SD W126 California model w/Sunroof, no EGR
1997 Audi A8 Quattro 225k Warm/Cold packages
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