transmission slips in overdrive

2004 FORD F-150

135,000 MILES • V8 • 2WD • AUTOMATIC

FORDQUESTION0785

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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 ??

Oct 18, 2009 at 9:21 AM

STRAILER

CAR REPAIR CONTRIBUTOR
54,354 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.

Images (Click to enlarge)

Mar 24, 2021 at 10:05 AM

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 :)

Mar 24, 2021 at 10:05 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.