Possessed '91

Discussion in 'Gen 1 & 2 - Emergency Issues - Help & Maintenance' started by FastCAD, Mar 21, 2020.

  1. FastCAD

    FastCAD SHO Member

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    What would cause the starter motor to continue to run with the key off?
    If I turn the key on the SHO will start and run without the clutch pedal depressed and the starter motor will continue to run even after the key is turned off.
    Has any one experienced this?
    Joe
     
  2. luigisho

    luigisho SHO Member

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    Your car should not make electrical contact with the starter unless the clutch is depressed. Unless someone bypassed this switch and wired it together and it is now making constant contact. Or maybe the switch is faulty and keeping current to the starter.
     
  3. FastCAD

    FastCAD SHO Member

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    Thanks Luigi.
    I spoke to my long time mechanic after losing him for awhile after he started moving around. He pointed me towards the relay on the driver's fender and specifically, the single push wire. He told me to disconnect the push wire (live elec.) and if the starter continued then the relay would be fused together and needs to be replaced or crimp that connection for a better connection which right now makes a lot of sense because the temp gauge wire has that same type of connection and after I put a tight crimp on the connection I got my temp gauge to work normal.
    I'll run the test tomorrow. I'll report back.
    Thanks again.
     
    Last edited: Mar 21, 2020
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  4. Zpak

    Zpak Es Aich Oh!

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    Same thing happened to me on my F100. Let go of the key and it just kept cranking away. Ran out and unhooked the battery real quick. Man that starter was hot! Mine was the starter solenoid. Failed on full hot. Luckily it didn’t smoke the starter.
     
  5. luigisho

    luigisho SHO Member

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    That would be another guess. Starter relay or ignition cylinder or ignition switch come to mind but I've never addressed this on any of my SHO cars. I do know of people that had a problem with the clutch switch and bypassed it so that was my first thought.
     
  6. Irish Pride

    Irish Pride Irish Inside Staff Member Super Moderators

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    Starter relay. Had this happen to me last year in my old 91. Fried the starter before I could give the relay a good smack.
     
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  7. FastCAD

    FastCAD SHO Member

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    Ditto. The new starter relay did the fix.
    Thanks to everyone.
    Joe
     
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