I have a 1998 jeep xj. Completely stock automatic AW4 transmission. My xj has 183k on it. I've replaced the TPS sensor, the TV cable adjustment. It feels like the XJ is skipping 2nd gear and going straight to 3rd. When i down shift, it down shifts hard, and when i up shift it feel like it goes hard into third.

I drained and replaced the transmission fluid, the fluid seemed a little dark, but not much. I carefully put back 3 quarts of synthetic Dexron 3 fluid. The level checks out on that, not overfilled nor is it under filled. From what i understand the AW4 doesn't use vacuum lines to the transmission? i do have the common vacuum leak with the a/c when i push hard on the gas it goes to the defrosters. Any ideas? please help. Today i decided to take the TPS sensor back and get a new one, replaced it correctly and it still does it.

 

Issue before or after parts replacement. No need for big dollar synthetic fluids in this thing the cheapest dex III/merc will be more than adequate. Are you sure it's not an engine problem?

 

Also when i go to 1/2 on the transfer case, it seems to just rev really high and it won't go into 2nd. just stays in 1st

 

What type of vehicle is this???

 

It was actually on sale, so i got the dex/merc synthetic for cheap. The issue started before the parts replacement

 

1998 jeep cherokee

 

4WD automatic, 4.0 I6, sorry if my words have been sounding jumbled.

 

And I doubt that its an engine problem, that's the least of my worries, because it runs so strong

 

Do your reverse lights work?

 

Well on my 98. If I put it into 1-2 it will rev to like 4600 RPM then shift super hard into 2nd. Dosent matter how far I push the pedal it shifts hard.

 

Mine seems to not even want to shift into 2nd

 

They do

 

Do gears 1,3,and 4 work? So does it go from 4000RPM to 2000 in one shift?

 

Great now I have the same problem. Mine through a P0700 code and it doesn't want to go into second. Anyone had a solution for me and the OP?

 

I discovered the answer for mine. Solenoid A failed. I'm gonna replace 2 of the solenoids. OP did you get a check engine light?