Lexus Ls400 2000 cold vibration problem
Thread Starter
Driver School Candidate
Joined: Aug 2006
Posts: 18
Likes: 0
From: Co
Lexus Ls400 2000 cold vibration problem
Hi everyone
I have A 2000 ls WITH 97000 MILES and im having a strange problem laterl, in cold starts, the engine with vibrate severym but after the car si warm, eberything is ok.
I have done the following
1- new sparkplugs
2-new timing belt
3-new engine support
4-new drive belt and bearings
I have never encounter such problem, please advise
thanks
I have A 2000 ls WITH 97000 MILES and im having a strange problem laterl, in cold starts, the engine with vibrate severym but after the car si warm, eberything is ok.
I have done the following
1- new sparkplugs
2-new timing belt
3-new engine support
4-new drive belt and bearings
I have never encounter such problem, please advise
thanks
Driver
Joined: Apr 2007
Posts: 180
Likes: 1
From: Texas
I have a similar experience with a 1998 LS. Only when engine is cold. The transmission is also sluggish during this time of warm-up, as if not really ready to go yet. After 2 or 3 minutes all is well. Obviously I don't have an answer for you.
No PD chime here? 
Check the OCV. Mobil 1 in your temps is like being in So. Cal, it should not be an issue. How has the oil drain service been? Hate to think there is a bunch of sludge in the pan that is hindering proper oil flow.
Check the OCV. Mobil 1 in your temps is like being in So. Cal, it should not be an issue. How has the oil drain service been? Hate to think there is a bunch of sludge in the pan that is hindering proper oil flow.
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Driver School Candidate
Joined: Jun 2007
Posts: 9
Likes: 0
From: Georgia
Vibration on 98 LS400
Not sure what I can tell you? I have taken to dealer and an independent.They jump right to the mounts and say lets replace those first for $550.
This seems to be related to if the car is hot or cold and maybe the temperature. I drove it tonight and it was 74 degrees and the car was still ly warm from my drive home. Dove to the local hamberger joint and it drove without problem.
I don't get vibration in the shifter. Seems to be around engine) I thought the car was just running rough (when I accelerate to 2000 rpm). It again, is worst in the morning for the first 3 miles.
With it doing this in park, I guess I can eliminate tires and trans.
Anybody have a guess? I don't want to just spend 100s of dollars to guess.
Thanks for your help
PS: Nobody has checked the engine for analysis.
Driver School Candidate
Joined: Jun 2010
Posts: 4
Likes: 0
From: CA
97k miles is LOW for engine mount problems. Also, if they were bad, it wouldn't stop once the car got warmed up.
Check the harmonic balancer and make sure your MAF sensor is good as well as the throttle body system.
Check the harmonic balancer and make sure your MAF sensor is good as well as the throttle body system.
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