Thump and slip

[bobbm1]

shift cable out of adjustment?

Somtimes while backing, more if over a bump or up hill I will get a lound thump/clank coming from somewhere in the back half of the X and it feels as though I hit somthing with sometimes a little slip. Once or twice it started making kind of a grinding noise and just rolled forward. Also when put in park facing a slight downward incline it will sometimes start rolling with a clicking from somewhere under the X. Going forward is fine and if the incline is going up no problems. I have no codes or flashing lights except for my 4hi/4low lights as I have the t/c unpluged while I am trouble shooting a cotrol track problem. I sometimes wonder if maybe the shifter is out of adjustment and it is not going all the way into park or reverse.

any ideas?

Thanks

 

[bobbm1]

anyone have an idea?

 

[Bronco638]

This is just a guess but it kind of sounds like the transmission isn't 'holding' a gear. It might be stuck between gears which is that 'clicking' sound you hear while it's moving.

Can you reproduce this situation for a shop or dealer? That might be the best way to diagnose the problem.

Dave.

 

[bobbm1]

update

Ok I adjusted the shift cable but it still wants to sometimes roll in park. no grinding in reverse just a good thump somtimes from the slip yoke I think. would loose valve body bolts do this? maybe the park pawl. How hard is it to repair the park assembely? where do you get parts for it?

I did notice while adjusting the cable the first time when I put it into park at the tranny it did not go in solid, felt springy. after a test drive I went to readjust the cable and park was solid at the tranny.

any ideas?