Transmission slips in overdrive

Tiny
FORDQUESTION0785
  • MEMBER
  • 2004 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 135,000 MILES
When my transmission goes into overdrive, transmission slips like it is in neutral. 1st, 2nd, and 3rd are o.K. If I shut off overdrive truck runs fine. Is this a transmission problem or is it something with a switch or computer issue?
Sunday, October 18th, 2009 AT 9:21 AM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,490 POSTS
Hey FORDQUESTION0785,

It sounds like you could have a pressure control solenoid that may be out. Here are instructions and diagrams below to show you how to replace it, if this does not work then there is a chance the transmission is going out and needs a rebuild or replacement. I would recommend a service but it is too late for that, the overdrive clutches are burned up.

If so here is a video on how to remove the transmission on a similar vehicle so you can get a rebuilt unit.

https://youtu.be/3vJAojsrfuU

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Wednesday, March 24th, 2021 AT 10:05 AM
Tiny
REY-GTS
  • MEMBER
  • 1 POST
Thanks for this post I had this problem and had to get a rebuilt transmission the video was great BTW :)
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Wednesday, March 24th, 2021 AT 10:05 AM

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