# Lexus vibration **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** lexus\ **Created:** [March 5, 2013, 7:52pm UTC](https://community.cartalk.com/t/lexus-vibration/77803 "2013-03-05T19:52:39Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![FLOYD\_BRYAN](https://avatars.discourse-cdn.com/v4/letter/f/a9a28c/32.png) [@FLOYD\_BRYAN](https://community.cartalk.com/u/FLOYD_BRYAN)\ **Post date:** [March 5, 2013, 7:52pm UTC](https://community.cartalk.com/t/lexus-vibration/77803/1 "2013-03-05T19:52:39Z")
1998 LEXUS LS400, ~130K MILES, TOWN DRIVING, AUTO SHIFT. ~35MPH DEVELOPS FINE VIBRATION WITH ACCOMPANYING HUM. BOTH INCREASE WHEN SPEED UP. HUM DEVELOPS A HARMONIC AND SHAKING INCREASES TO ALMOST A SHUTTER. DECREASES OR STOPS WHEN RELEASE ACCELERATOR. COULD NOT TRY NEUTRAL AS OWNER/SPOUSE DRIVING. ---
**Author:** ![Big\_Marc](https://avatars.discourse-cdn.com/v4/letter/b/9d8465/32.png) [@Big\_Marc](https://community.cartalk.com/u/Big_Marc)\ **Post date:** [March 5, 2013, 8:49pm UTC](https://community.cartalk.com/t/lexus-vibration/77803/2 "2013-03-05T20:49:48Z")
i’m only shooting in the dark but, i would start with the driveshaft it has a dampner on the back of it, or it could be a tire/wheel out of balance. i changed my mind take a good look at the tiresfor uneven wear. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [March 5, 2013, 8:53pm UTC](https://community.cartalk.com/t/lexus-vibration/77803/3 "2013-03-05T20:53:52Z")
This could be a case of torque converter shudder. I would suggest a visit to an independent transmission shop for examination. Whatever you do, do **NOT** go to a chain operation like AAMCO, Lee Myles, Cottman, Mr. Transmission, and similar charlatan shops. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [March 5, 2013, 11:30pm UTC](https://community.cartalk.com/t/lexus-vibration/77803/4 "2013-03-05T23:30:14Z")
On a '98 this could be any one of 100 things…or all 100. Have someone check the chassis, the engine operation, the engine mounts, the struts, and "last but not least) the tires & wheels. It could be a bad TC, worn bearings, poorly worn tires, a bad engine mount, poor engine operation (like bad plugs or a misfiring injector), bad tie rod ends, a bent rim, or any of a list of other causes.