I have a '93 GC. It is a auto. everything seems fine until I get high speeds than it does not want to shift into 4th at all. turning the OD off and on hasn't helped and this has been happening for about 2 weeks now. not sure what to do other than pay someone to look at it and that can be spendy around here.

 

Might get more responses in Grand Cherokee tech.

 

You beat me to it. I was going to say the same thing. It seems like so many of the new people can't read and keep posting in the wrong areas!

 

This is Cherokee tech not grand Cherokee tech