Starter problems

1998 FORD EXPEDITION
124,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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DETYREDNOW
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My SUV has recently refused to crank the starter motor when the engine is hot. When allowed to fully cool the motor will crank and the engine will start and run.
I have changed the bulk head starter solenoid and the problem still exists.
Could this be a dead spot on the starter motor commutator that moves on cooling?
Mar 8, 2014 at 8:19 AM
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SATURNTECH9
  • ✓Experienced Mechanic
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Sounds more like a bad starter do you have a multi meter to do some testing?
Mar 8, 2014 at 12:34 PM
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DETYREDNOW
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Yes I do have a meter and am electrical savvy.
Voltages to the starter solenoid were OK at 12V and there is a full short across the power terminals but I havn't done any checks on the starter motor itself yet - that will be tomorrow's job and will possibly pull the motor at that time.

Thanks,
Brian
Mar 9, 2014 at 12:56 AM
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SATURNTECH9
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If the red wire to the starter has power and the black wire to the starter with the key in the start position then you have a bad starter.
Mar 9, 2014 at 12:37 PM
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DETYREDNOW
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Thanks for the info. I have a pit in my home garage and will be starting the job this morning.
Mar 9, 2014 at 11:09 PM
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SATURNTECH9
  • ✓Experienced Mechanic
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You are welcome let me know how it goes.
Mar 9, 2014 at 11:49 PM
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