Thumping feel.....tranny mount, ujoints, engine mounts????

[drock87]

There is a similar thread, but I feel the "thumping" underneith me when going over bumps, coasting (especially around a turn), in reverse, and especially in 4x4. Now...If I'm in 4x4, it is accelerated if coasting, but under heavier acceleration, it is much less noticable. In another forum, the throughts were either the front driveshaft slipyoke or tranny mount. Thoughts?

[IowaEagle]

I would check the transmission mount first.

[Gil-SX4]

Check the muffler first, if you really don't hear it at faster speeds but hear it at slow speed when hit-ing bumps in road, check drivers side rear bracket before rear wheel, drivers side before pipe takes the loop over rear shock tower, or rear wheel shaft.

[Gil-SX4]

Thoughts? If other site is the "Nest" throw any idea's of info in the trash where it belongs!
Write me and tell me where the thump sound seems to come from, back front, drivers side, or left side.
Get it, if you can on a lift, check trany mounts just by pushing up at trany back end, it really sounds like your pipe bracket or clamp is broken. 

[IowaEagle]

Good suggestions Gil.  Uni-body cars tend to transmit sounds to other places in the car were the problem is not at.  One test is to put it in first gear and then romp on the gas pedal, if there is a lot of shudder and the gear shift really vibrates it may be the trans mount.

[1985amceagle]

Thoughts? If other site is the "Nest" throw any idea's of info in the trash where it belongs!
Write me and tell me where the thump sound seems to come from, back front, drivers side, or left side.
Get it, if you can on a lift, check trany mounts just by pushing up at trany back end, it really sounds like your pipe bracket or clamp is broken.

the other forum was Evolution, here is the topic: http://forums.amcevolution.com/viewtopic.php?f=14&t=1632  if it was on the nest, it looks like steve threw the forum away again.    Drock, how close is the driveshaft to the tail pipe? could the drive shaft be hitting the exhaust pipe?

[IowaEagle]

Yes, it could be one of several things.  A close examination under the car is in order.  The exhaust pipe by the trans/transfer case could cause that.