Recent content by S-FLY1

Just to update, I took my XJ in to a jeep mechanic and he gently file the splines on the inside of the drive shaft that goes into the slip yoke. The clunking/bump went away, but came back mildly. About 80% better than what it was.

I don't have to grease the slip joints because they're supposed to be self-greasing from the t-case in these models. I put in Dextron ATF, not 80w90 as I first thought it took. I'll have another look at the u-joints.

I checked the fluid and topped it up. It was down 1/4 of a quart. The clunk is still there, but I'm almost thinking it's suspension now because when my 200lbs friend got in the passenger seat to help me diagnose the issue, it didn't do it once. I'm lost.

Tried to check last night, didn't have a socket large enough. I'll do it today. Also, by atf, I assume you mean 80w90? :)

That's actually exactly how we checked.

Here's the service bulletin for the WJ's which describes stop-bump. There was a TSB for XJ's too that I read, but I can't find it at the moment:

Sounds good, I'll check that next. I'll report back after I check the level.. Thanks!

Anyone else have any ideas/experience? :huh:

Yup, U-joints and motor mount/tranny mounts are fine. Checked the brakes as well, all fine. I did notice the slip-yoke seal was worn and not even touching the shaft which makes me think it's this stop-bump issue.

"Stop-bump". Basically the symptoms of the same problem that affect the newer XJ's and ZJ/WJ's where the slip yoke gets bound up from the grease drying and when the vehicle comes to a stop, a forward jerking clunk is heard/felt from the rear end and when starting from a complete stop another...

I've had a simular shifting issue with my '94 and it turned out to be a bad throttle position sensor (TPS). I replaced it and the issue went away. Do you have any check engine lights?

I have what appears to be a stop-bump issue on my '94 xj. I read that the slip-yokes were self-lubricated from the t-case fluid in the pre-1996 models. Has anyone else had this problem from a pre-1996? Thanks in advance.