Transmission refused to go forward?

2003 FORD F-150
118,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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TREVERWHITING 16
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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?
Dec 6, 2025 at 11:20 AM
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STRAILER
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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.
Dec 7, 2025 at 10:15 AM