thud in transmission

[jeepster1985]

When I drive my '96 xj 4.0, I notice that while I'm driving down the road and let up on the gas for traffic or something, then when i press the accelerator back down the transmission feels like it thuds into gear, it's an automatic by the way...is that normal or should i be concerned...thanks for any suggestions or ideas in advance

 

[jeepster1985]

its just enough of a thud to barely be noticed

 

[xjdaddy]

Are you sure it is from the tranny? My 98 makes noises like that all the time and it comes from the 8.25 axle. I have talked to several guys and they say all 8.25 axles do this, even thought all the u-joints are tight, etc... Just a thought...

 

[GSequoia]

Okay..first the easy thing. Are you sure teh Tranny is topped off with fluid? If it's not full it will clunk into gear.

Next, transmission and/or motor mounts will cause a clunk sometimes. You might want to take a good look at it. If you're chaning the trans mount you should go ahead and do motor mounts, and vise-versa.

Sequoia

 

[cherokeekid95]

ya i got an 8.25 and it does clunk no biggie. but do check your rear DS where it connects to the yoke on the rear diff. I had a decent clunk and just thought nothin of it till one day i was checkin rock bites and saw that the straps holdin the ujoint were bent and the ujoint was sloppin back and forth in the yoke.just something else to check.