86 F250, broken ignition switch, rod pulls, wont turn over - Diesel Forum - TheDieselStop.com
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6.9L Diesels Technical discussion of topics related to vehicles powered by the 6.9 Liter In-Direct Injection Navistar engines.

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Old 01-14-2008, 08:39 PM   #1 (permalink)
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86 F250, broken ignition switch, rod pulls, wont turn over

86 F250, chrome bezel broke off ignition switch, truck has not started since. Rod does pull upward when the key is turned. Starter does not turn over.

Do i need to focus on the switch/column, or the starter solnoid?

ABW
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Old 01-14-2008, 09:53 PM   #2 (permalink)
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Re: 86 F250, broken ignition switch, rod pulls, wont turn over

I just did one of these on a truck. I don't know exactly what it is called but inside the column under the turn signal switch is a piece off pot metal that actuates the rod when the key is turned. On the one I fixed the pot metal broke. Check and see if you can jump the starter solenoid under the hood. If so, it is likely the piece in the column. One other thing, The rod should push away from the driver to start/run.
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Old 01-15-2008, 09:20 AM   #3 (permalink)
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Re: 86 F250, broken ignition switch, rod pulls, wont turn over

You can replace the key assy....

To remove key cylinder

1 Disconnect battery grounds x2....
2 Turn lock cylinder key to run position......
3 Place a 1/8 diameter pin (drill bit) in the shroud under lock cylinder.
Depress retaining pin while pulling out on lock cylinder to remove it from the column housing.

To install key cylinder

1 Instal lock cylinder by turning it to run position and depressing the retaining pin. Insert lock cylinder into lock cylinder housing. Make sure cylinder is fully seated and aligned in interlocking washer before turning key to off position. This will permit cylinder retianing pin to extend into cylinder housing hole.
2 Rotate lock cylinder, using lock cylinder key, to make sure of correct mechanical operation in all position.
3 Connect battery ground cables
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Old 01-15-2008, 11:26 PM   #4 (permalink)
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update

checked the switch under the dash on the top of the column, there is power there. No power to the 2 wires on the right side of the Injection Pump.

Under the chrome bezel there are 2 spring loaded pins on either side of the key, and what looks like an electrical switch at the top, could this be what is broken and not allowing power to go to the pump?

I think I will try to replace the key and tumbler and see if that works. Looks like a new one is under 10 bucks. Better than trying to hot wire the IP, and putting a screw driver across the terminals.

Any suggestions?
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Old 01-17-2008, 05:49 AM   #5 (permalink)
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The wires on the right side........ you must mean facing from the front.... right.

Check the main wiring harness on the pax fender...... there have been problems with large connectors burning up. Look for melted connectors (black) also grey connectors had bad wiring. Members just removed the connectors and soldered the wires together.
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93 F250 7.3 IDI S/C XLT 4X4 E40D 3.55LS, Captains chairs, Tutone Mocha, Leer 48" Hiboy cap, FR & RR hitches, full DeeZee running boards. Factory ordered/delivered Jan 93

Toys: 2006 37' Triple E Embassy coach (powered by Cummins), 18' Sylvan Pro Fish with Mariner motors.

Proud Canadian BOOB man too!!

Please PRIVATE MESSAGE only!! ...
Please DO NOT.....visitor message me...
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Old 11-02-2010, 03:36 PM   #6 (permalink)
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I hope you did like "cdnsarguy" said, and just replaced the ignition switch, it's easy it's fun and should have solved your problem. Unless you made it worse by messin' with all that other stuff. My switch was getting where it would not hit the starter switch too, all it took was a five minute job and i'm off and running again. I wish all the work I've done on the ol'truck was this easy.

Last edited by hawgman; 11-02-2010 at 03:37 PM. Reason: spelling
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