So my 90 XJ seems to be having an issue. Picked this guy up a couple weeks ago for near nothing, seems to be in good shape, drove it home and everything. yesterday, as i was driving her a bit to diagnose any issues that need resolving, i took about a 15mile stretch down the local hwy10 got her on up to about 75, no issues at all getting her up to that nor back down to a stop. As im doing a lil biy on in-town driving back home, it starts to develop a funny little shifting pattern where it seems to want to stay in 1st far too long, and once it DOES shift out of first, its pretty much right into overdrive. I manage to get home, pull in the drive way and shift to park. Once i shift it into park, it idles really loud and hard...somewhere around 2200rpms. shift it back into drive, and idle drops back to normal (1200-1500). shift to nuetral, hard and loud idle. Back to park and the same thing.
Turn it off for about 10 min, go in and have a beer, come back out and start it up, and is idling like normal all across the range from park to nuetral to drive.
I dont really feel as thought it is tranny issues because it seems to almost come and go. hopefully some of you guys can give me some good input!

 

search kick down or detent cable you should find you answers there