Transmission refused to go forward?

Tiny
TREVERWHITING 16
  • MEMBER
  • 2003 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 118,000 MILES
I was driving and the transmission refused to go forward. I was able to drive in reverse all the way home. Now it won't go forward or reverse.

It does have an oil leak I believe it's transmission fluid.

If I replace the seals and fill it back up with transmission fluid will it work again or is my transmission toast?
Saturday, December 6th, 2025 AT 11:20 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,601 POSTS
The transmission can still be okay, I would try refilling the transmission with fluid first to see if it starts working and run the codes to see if any are stored, this can help tell us what is going on.

These guides can help us get started.

https://www.2carpros.com/articles/how-to-check-and-add-transmission-fluid

and

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over these guides and get back to us.
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Sunday, December 7th, 2025 AT 10:15 AM

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