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LS430 Engine Vibration


deadgrateful
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Hi, My 2004 LS430 has developed an Engine Vibration @ 2500-3500 RPM it does it stood still in park as well as in gear - Its not so bad when the Engine has warmed up but is still noticeable. 

If its revved & kept at say 3000rpm in park/neutral you can feel the vibration up through the Steering Wheel.

As it does it while stood still I can only think it must be either Engine related or Eng/Gbox Mountings ??

Whats the best process of elimination ??

Any Ideas - Thanks.

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Hello and welcome to the LOC.

To check the engine mountings get someone to rev the engine whIle you look and see if there is excessive side to side movement, the engine shouldn't move at all.

Transmission mount will need to be checked visually.

Also check the steering rack mounting bushes.

Could also be a misfire is the servicing up to date?

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