starter will not start the engine when it is hot?

1999 DODGE RAM
200,000 MILES • 9.0L • V10 • 4WD • AUTOMATIC
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RANDALL VAN OORT
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  • 1 POST
When the starter is cold, it will start. Drive until the motor is warm, then shut it off, and it will not restart until it is completely cold again, about 10 hours later. It is currently the height of summer heat. I replaced the battery, the starter, the battery cables, and starter relay. won't start with a jump when it's hot, either. Sometimes it will click, other times no noise at all.
Aug 7, 2022 at 10:12 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,273 POSTS
Yep, there is a starter motor relay that I would replace here is the location in the diagrams below and I have included the starter wiring diagrams so you can see how the system works. Check out the diagrams (below). Please let us know what you find.
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Aug 8, 2022 at 5:12 AM
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