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1996 Lexus LX 450 vehicle shake side to side when driving o

Tiny
MSHARIEF
  • MEMBER
  • 1996 LEXUS LX 450
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 183,000 MILES
Hi:
I would like to know what is causing my vehicle to shake(move side to side) when driving past 70 mph. Its as if I can loose control of the car. Driving below 70 mph the car drives great. I did change the shock absorber for both front and rear of the vehicle with a heavy duty "biltstein" shock absorber. Is there such a thing where the shock absorber might be to stiff for the vehicle. The one I bought is suppose to be better and it was the most expensive. Or is there some other issue that is causing this.
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Tuesday, January 20th, 2009 AT 5:10 PM

7 Replies

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Did you also replace the steering stabilizer/damper as well? That part is responsible for the lateral movement of the vehicle.


https://www.2carpros.com/forum/automotive_pictures/55316_sc2957_1.jpg




https://www.2carpros.com/forum/automotive_pictures/55316_96lexusstabilizer_1.jpg

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Wednesday, January 21st, 2009 AT 11:58 AM
Tiny
MSHARIEF
  • MEMBER
  • 5 POSTS
The steering stabilizerdamper was a little different from the original. In fact the replacement looks exactly like the picture you sent me. The original looks like the one in the illustration. I dont know if that makes a difference. I replaced it my self. Maybe I should check if it is loose. Could it also be tire balance?
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Wednesday, January 21st, 2009 AT 3:00 PM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Yes, it can be tire balance and/or wheel alignment as well. Also, while you are checking the dampener, you may want to check the ball joints and tie rod ends. Make sure that they are tight and the boots not leaking.
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Wednesday, January 21st, 2009 AT 5:20 PM
Tiny
MSHARIEF
  • MEMBER
  • 5 POSTS
Just to to know, do you think it can also be weak coil spring as the car has hig mileage. I dont really see any damage on it. What you think. I really do appreciate your advise, it has been very helpful. I will be sure to visit again and make a contribution.
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Wednesday, January 21st, 2009 AT 6:27 PM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
I didn't realize you have that many miles. If the coils you have are the originals from 13 years ago on that heavy vehicle, it is quite possible.

In your case, I believe is the combination of a few things. Weak coils, possibly tire balancing, and wheel alignment as well. You should get an alignment every time to work on suspension. In your case, the new shocks.

And I have ridden in many SUVs with increased height ride, I can say that most of them feel bouncy from side to side, but not to a point that you feel like losing control.
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Thursday, January 22nd, 2009 AT 4:09 PM
Tiny
MSHARIEF
  • MEMBER
  • 5 POSTS
You have really helped me out. And yes the tie rod ends are quite loose. They are not really leaking, but you can shake them and it really loose. I think I will be changing those very soon. Any recommendation in oil stop leak additive? Like what brands are best. This is for engine. Thanks a million once again.
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Thursday, January 22nd, 2009 AT 4:48 PM
Tiny
ZACKMAN
  • MECHANIC
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I am just glad I can be of help.


https://www.2carpros.com/forum/automotive_pictures/55316_lco_10278_1245_1.jpg


Lucas part number 10278.
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Thursday, January 22nd, 2009 AT 9:36 PM

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