Stuck in 4 High

Cota · Jan 30, 2015

2002 F350, put it in 4 high to run some brush down to the burn pile in the pasture.
Now it wont disengage. Did a search but didn't come up with anything.
What should I start trouble shooting?
What would cause it to not unlock?
Any where I can read up on how to trouble shoot this problem?
Thanks,

mandkole · Jan 30, 2015

Is the light staying on after switching to 2H? Try this.. in neutral, shift from 4 lo, turn to 4 hi.........wait a few seconds, then switch to neutral and repeat for 2wd. Wonder if the motor is a little stiff due to lack of use....kinda like us. lol

psduser1 · Jan 30, 2015

Cota said:
2002 F350, put it in 4 high to run some brush down to the burn pile in the pasture.
Now it wont disengage. Did a search but didn't come up with anything.
What should I start trouble shooting?
What would cause it to not unlock?
Any where I can read up on how to trouble shoot this problem?
Thanks,

I've had to pull the shift motor, and move the rod by hand, my motor was fine:shrug:
Maybe just sluggish, old.

Cota · Jan 30, 2015

Yea I tried all that stuff, backing up, going forward, put it in neutral stepping on the brake and switching from 4lo to 4 hi and 2w. Nothing has worked yet.

I hear you on the old and stiff stuff. Thought I broke my thumb when I popped the front drive shaft out so I could drive home.
Fun times.

Cota · Jan 30, 2015

Yea it doesn't get used much.
How did you check to make sure your motor was good?
What did you do to free it up?
Thanks

psduser1 · Jan 30, 2015

Just cycled the rod a few times. Cycled the motor, off the transfercase, and it seemed to move ok. Maybe a dead spot in the motor. Not really sure. It worked everytime, 60% of the time after that, lol.
Ended up parting the truck, anyway.