2000 f250 wont shift out of first unless you let off?

[lake speed]

I have a 200 f250 that will not shift out of low unless you let off the throttle. You have to run the rpms up to above 2500 and let off and then it will shift.. it shifts fine through every other gear? any one have any ideas?

[FordNutz]

sounds like a sprag broke loose but hard to say. Might want to pull the pan and see whats in it.

[swoods]

I have a 2003 f350 7.3 thats doing the same exact thing have u figured any thing out yet btw what is a sprag thanks!

[FordNutz]

A sprag is a one way roller clutch that allows a drum or part to overrun in one direction and lock in the other. You need to check for codes, ect...

[swoods]

Thanks for explaining that to me fordnutz, and would an auto zone scanner be able to pick up these codes. Im pretty new to my 350 not even sure if i have the 4r100 maybe you know thanks again!

[swoods]

Im pretty new to my 350 not even sure if i have the 4r100 maybe you know thanks again!

[99TonkaStroke]

I am having the exact same problem with my '99 f250. you should have the 4r100, just like I do. my current trans only has 4k miles on it. (ford warranty replacement). the previous one did the exact same thing @ 8k miles. (ford reman that cost $2400). if someone here has any help for this guy and me please post it up!!!

-even though i'm shucking the auto and doing a manual swap....i'd still like to know.

[PHPDiesel]

Intermediate sprag is broken.

The truck is performing a 1-3 shift.

Full-throttle upshifts from 1st to 2nd will get you every time.

[99TonkaStroke]

Originally Posted by PHPDiesel

Intermediate sprag is broken.

The truck is performing a 1-3 shift.

Full-throttle upshifts from 1st to 2nd will get you every time.

damn ur good man...thats exactly how it happened...haha. so im assuming this isnt a "quick fix"....probably have to pull the tranny and tear it down right?

[FordNutz]

Originally Posted by 99TonkaStroke

damn ur good man...thats exactly how it happened...haha. so im assuming this isnt a "quick fix"....probably have to pull the tranny and tear it down right?

Damn, I think I said sprag earlier. Yes, it would need to be torn down.