LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Vibration at 2000 RPM Sitting Still

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Old 11-05-16, 07:21 PM
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gebo
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Default Vibration at 2000 RPM Sitting Still

In my 1998 LS400, I feel a vibration at 2000 and 3500 rpms when car is sitting still. Most pronounced at 2000 rpm. Replaced a broken motor mount figuring that would fix it but it didn't. No CEL or codes and it is intermittent. Where should I start checking next?
It's almost like a misfire. You can feel it in the steering wheel.
Old 11-06-16, 04:59 PM
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jeeps005
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Change the transmission mount.

I had the same issue. I changed the motor mounts which were completely finished and was confisent I had found the problem but it didnt change anything surprisingly.
After searching the on the web a bit i decided to try changing the tranny mount and voila.
Old 11-07-16, 09:44 AM
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gebo
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Picking up transmission mount tomorrow.
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