I have a 98 grand Cherokee all stock I went to the woods a few nights ago played a little bit, and today it all shifts five but will not shift into over drive, it's not throwing any cods or a engine light, has anyone had this problem before, or know what I should do ?
Thanks

 

Umm, have you checked the tranny fluid?

 

Yes it's full

 

Make sure the overdrive eliminator button didn't get pushed by accident. It's in the dash next to the rear defogger button.

 

Ok I'll look and thanks

 

You pulled codes but can your code reader look at sensor data?
These are just guesses or things to consider, a few things that can fail and not show up are TP sensor, Brake lamp switch and O/D switch. The brake lamp switch is not the circuit that does you brake lamps its the brown wire and black wire, power should go through those circuits and open when the brake pedal is pressed.

 

Has detent ever been adjusted have any wires underneath been disconnected ?.....

 

I fixed it it was the TV cable was put of adjustment
Thanks for the help

 

T/V cable or T/V pressure has nothing to do with O/D shifting. Are you sure you had a problem with O/D?