ascCapri
03-25-2011, 01:29 PM
Between my girlfriend and her son, we have always had a 4.0 jeep in the family, and needless to say the youngin' isn't as easy on his supposed pride and joy as he should be. In either case, he has a 1997 Jeep Cherokee with an auto trans, 4.0. He describes a large driveline vibration at higher speeds and also had some clunking going on, but not all the time. The clunking would happen from a stop, maybe accelerating straight or in a turn, but apparently has been going on for a while.
So, 3 weeks ago, he had it looked at by the people who rebuilt his transmission last May (not sure the details of the rebuild). This trans shop replaced the front axles as the u-joints at each end were sloppy and they seemed certain that was the issue.
Unfortunately, the problem he is having still exists, however the high speed front end wobble was indeed lessened. I drove it around last night and it almost feels like sloppy u-joints when you are on and off the throttle....however I noticed as it shifted into drive, it was kind of loud with a lurch of the vehicle, so I got underneith and had him shift it from neutral to drive or even reverse to drive and the entire car would lurch maybe an inch forward and the driveshaft would literally rotate 45 or so degrees????? I replaced the motor mounts a few months back, and the trans mount looks like it isn't flexing all the much.
I asked him to stand on the brakes and pull the ebrake and even still, the trans would engage rather hard and cause rotation to the driveshaft. Any ideas what this could be? I am not sure where the trans ends and the transfer case begins, but the driveshaft going to the rear diff is what I am talking about twisting. I see and feel no slop in the driveshafts, but as i said, this engagement is pretty clunky.
It has been apparently going on for a long while, so I think he can continue to drive it, but does this sound characteristic of anything you guys have seen in any other make and model?
Here is a vid I took, sorry for the low light. I couldn't zoom out any farther.
http://s234.photobucket.com/albums/ee303/asccapri/?action=view¤t=100_0375.mp4
So, 3 weeks ago, he had it looked at by the people who rebuilt his transmission last May (not sure the details of the rebuild). This trans shop replaced the front axles as the u-joints at each end were sloppy and they seemed certain that was the issue.
Unfortunately, the problem he is having still exists, however the high speed front end wobble was indeed lessened. I drove it around last night and it almost feels like sloppy u-joints when you are on and off the throttle....however I noticed as it shifted into drive, it was kind of loud with a lurch of the vehicle, so I got underneith and had him shift it from neutral to drive or even reverse to drive and the entire car would lurch maybe an inch forward and the driveshaft would literally rotate 45 or so degrees????? I replaced the motor mounts a few months back, and the trans mount looks like it isn't flexing all the much.
I asked him to stand on the brakes and pull the ebrake and even still, the trans would engage rather hard and cause rotation to the driveshaft. Any ideas what this could be? I am not sure where the trans ends and the transfer case begins, but the driveshaft going to the rear diff is what I am talking about twisting. I see and feel no slop in the driveshafts, but as i said, this engagement is pretty clunky.
It has been apparently going on for a long while, so I think he can continue to drive it, but does this sound characteristic of anything you guys have seen in any other make and model?
Here is a vid I took, sorry for the low light. I couldn't zoom out any farther.
http://s234.photobucket.com/albums/ee303/asccapri/?action=view¤t=100_0375.mp4