Electrical 67 Mustang Won't Turn Off

Discussion in 'Classic Mustang Specific Tech' started by Rmoore45, Nov 15, 2013.


  1. Rmoore45

    Rmoore45 Member

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    67 mustang with a 289 and original wiring harness will not turn off with the key. I replaced the ignition switch and the starter solenoid. Any ideas? I'm working on removing the wiring harness and figuring out the problem but any thoughts would be appreciated
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  2. horse sence

    horse sence Please don't call me Mom SN Certified Technician

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    are you running a single wire alternator ? one without a diode will keep running
    when the key is turned off ,found that out on my ski boat.
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  3. Rmoore45

    Rmoore45 Member

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    Ended up being the starter solenoid, the I side of the solenoid was hot all the time. I thought I ruled that out when I replaced it a week ago. I didn't need to remove the gauge cluster, a/c duct work, and a good portion of the wiring harness :dammit: :doh:. Now to put it all back together :bang:
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  4. Rmoore45

    Rmoore45 Member

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    Put everything back together and everything works! My baby is back on the road again. Also fixed a few things while I was in there like a/c duct work and wires that had 3 butt splices etc.
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