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Old 06-06-2013, 10:31 AM   #1
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Vibration / Shimmy while accelerating from stop.

I have searched the forum and haven't found anyone with the exact problem so here we go. Well I have had my Jeep for about 2 months. The more I drive I notice a slight vibration when accelerating from a dead stop. I don't think it has gotten worse but I am becoming more aware of it. I really wouldn't call it a strong vibration or death wobble but more of a shimmy. It happens for a second from a dead stop and ends at a point that I would estimate could be after the tire rotates 2 or 3 revolutions. I had friend ridding in the back seat and he said it was more pronounced when ridding back there. I don't feel the shimmy in the steering wheel but mainly in the body.

My current set up is.
1999 Sport
4.0 I-6
Auto 3 Speed Transmission
2" Lift (not sure what type or brand installed by PO)
32" tires

Thanks for the insight this is my first Jeep. It is really not a huge issue I just need to know if this could leave me stranded or lead to other problems down the road.

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Old 06-06-2013, 10:34 AM   #2
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Driveshaft ujoints

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'05 LJ
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Old 06-06-2013, 05:03 PM   #3
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Transmission mounts?
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Old 06-06-2013, 05:10 PM   #4
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Quote:
Originally Posted by timboburks View Post
Transmission mounts?
On the same line of thought, the Motor Mounts?

I know my ride felt a lot smoother after replacing mine
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Old 06-07-2013, 10:20 AM   #5
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Thanks for the insight. I've read that if I disconnect my rear drive shaft and drive in 4 high for a little bit I could isolate the problem to the U-Joints.

As far as the transmission mounts are they the ones that bolt to the skid plate or is there something else above transmission or transfer case.

Replacing the motor mounts would I have pull the motor or could I do them one at a time with the motor in place.
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Old 06-07-2013, 11:13 AM   #6
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Quote:
Originally Posted by Duckmasterlack View Post
Thanks for the insight. I've read that if I disconnect my rear drive shaft and drive in 4 high for a little bit I could isolate the problem to the U-Joints.

As far as the transmission mounts are they the ones that bolt to the skid plate or is there something else above transmission or transfer case.

Replacing the motor mounts would I have pull the motor or could I do them one at a time with the motor in place.
1) Correct, and disconnecting the rear drive shaft is fairly simply/straight forward

2) Yes, the transmission mount is what bolts through the skid plate

3) Yes, you *can* replace the motor mounts *without* pulling the engine. The process I used was to put a jack under the oil pan and slowly jack it up. As soon as you see the engine start to lift stop, at that point the weight is off the motor mounts. From there you can remove/replace them while the engine is supported by the jack, being sure to do one side at a time.

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