After changing the fluid the transmission will not shift into reverse?

2004 LINCOLN LS
240,000 MILES • 3.0L • V6 • AUTOMATIC
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DODGERS
  • MEMBER
  • 5 POSTS
I changed the transmission fluid and now it won't shift into R. Transmission solenoid pack.
Apr 27, 2021 at 11:50 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good morning,

Engagement of reverse is mechanical, not electronic. I attached a chart of the possible issue for not going into reverse only.

https://www.2carpros.com/articles/automatic-transmission-problems

I attached testing for the mainline pressure below to determine if it is an internal issue.

Roy
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Apr 28, 2021 at 1:34 AM
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