automatic transmission will not shift on its own

2004 DODGE RAM
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BILLYHADEN
  • MEMBER
  • 1 POST
My 04 Dodge truck (5.7L) has the check engine light on and the automatic transmission will not shift on its own, It will shift manually with no problem.
Mar 24, 2009 at 3:45 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,594 POSTS
Yep its sounds like the TCM computer is out. I would try a used one so you can plug and play.Here is the location (below)Please let us know what happens.................................................................................................
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May 1, 2021 at 10:55 AM
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