Another F-Sport Swaybar thread. new on an '07 430 (Fsport Sway Bar Noise Problems)
Driver
Joined: Feb 2007
Posts: 127
Likes: 1
From: CA
After a week of driving with the new swaybars on my rwd 350, I'm getting a clunking noise in the front. It seems to happen one time a day... the first bump I hit after I pull out of my driveway in the morning. After that it doesn't make any noises, other than a little more prononced tire noise on the freeway.
I wonder if the harder rubber bushings are causing the noise.
I wonder if the harder rubber bushings are causing the noise.
After a week of driving with the new swaybars on my rwd 350, I'm getting a clunking noise in the front. It seems to happen one time a day... the first bump I hit after I pull out of my driveway in the morning. After that it doesn't make any noises, other than a little more prononced tire noise on the freeway.
I wonder if the harder rubber bushings are causing the noise.
I wonder if the harder rubber bushings are causing the noise.
Guest
Posts: n/a
I'm curious is something loose under there that is causing it to rattle sometimes and not all the times.
That happened to me before on my 2GS, heard it rattling sometimes and felt the car wasn't as pointable....well 2 screws were loose on one side.
Has the IS had this issue? They have had sways for awhile now, like 2 years.
That happened to me before on my 2GS, heard it rattling sometimes and felt the car wasn't as pointable....well 2 screws were loose on one side.
Has the IS had this issue? They have had sways for awhile now, like 2 years.
Driver
Joined: Feb 2007
Posts: 127
Likes: 1
From: CA
I'm curious is something loose under there that is causing it to rattle sometimes and not all the times.
That happened to me before on my 2GS, heard it rattling sometimes and felt the car wasn't as pointable....well 2 screws were loose on one side.
Has the IS had this issue? They have had sways for awhile now, like 2 years.
That happened to me before on my 2GS, heard it rattling sometimes and felt the car wasn't as pointable....well 2 screws were loose on one side.
Has the IS had this issue? They have had sways for awhile now, like 2 years.
I'm suspecting that since the rubber in the bushings is harder than the stock bushings, the bushings are "deforming" (taking to a different shape) when my car is sitting on the driveway (facing up not level). Then not giving the bushings enough time to return back to their normal shape, the "clunking" or "bumping" noises occur when I hit any bumps on the street.
So may be a revised bushing is needed?
It doesn't seem to be related to only GS4xx since some of these posts include the GS350 which I thought these were designed for. Has anyone contacted Lexus regarding this issue? I have only heard one success story (i mean sucess story in that no thumping noise is being produced) and that is I8ABMR's car.
I8 maybe you can speak to the service tech who installed yours and mention some of the problems that others are having with these sway bars and see if he has an opinion? He might have some insight.
Keep us posted,
I may take advantage of the layaway Sewell is offering to lock in price on sway bars and then hope that this issue is resolved before end of year
I8 maybe you can speak to the service tech who installed yours and mention some of the problems that others are having with these sway bars and see if he has an opinion? He might have some insight.
Keep us posted,
I may take advantage of the layaway Sewell is offering to lock in price on sway bars and then hope that this issue is resolved before end of year
I've double checked everything and torqued all bolts and nuts to spec.
I'm suspecting that since the rubber in the bushings is harder than the stock bushings, the bushings are "deforming" (taking to a different shape) when my car is sitting on the driveway (facing up not level). Then not giving the bushings enough time to return back to their normal shape, the "clunking" or "bumping" noises occur when I hit any bumps on the street.
So may be a revised bushing is needed?
I'm suspecting that since the rubber in the bushings is harder than the stock bushings, the bushings are "deforming" (taking to a different shape) when my car is sitting on the driveway (facing up not level). Then not giving the bushings enough time to return back to their normal shape, the "clunking" or "bumping" noises occur when I hit any bumps on the street.
So may be a revised bushing is needed?
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I am confident its that they are reusing the end-links. I was surprised to see that they dont suggest you to replace these. Talking to a few local 2Gen GS owners these end-links where problems with sway bars. I searched hard but there is nothing aftermarket for this car at this point. I ordered new end-links to do it right IMO and yes its costing me more but I can report back if I have any such noises.
Lead Lap
Joined: Sep 2001
Posts: 430
Likes: 1
From: California
I am confident its that they are reusing the end-links. I was surprised to see that they dont suggest you to replace these. Talking to a few local 2Gen GS owners these end-links where problems with sway bars. I searched hard but there is nothing aftermarket for this car at this point. I ordered new end-links to do it right IMO and yes its costing me more but I can report back if I have any such noises.
L
Driver
Joined: Feb 2007
Posts: 127
Likes: 1
From: CA
I am confident its that they are reusing the end-links. I was surprised to see that they dont suggest you to replace these. Talking to a few local 2Gen GS owners these end-links where problems with sway bars. I searched hard but there is nothing aftermarket for this car at this point. I ordered new end-links to do it right IMO and yes its costing me more but I can report back if I have any such noises.
.
^ From what I am told from the 2gen GS owners this was an issue for them. They have aftermarket end-links to choose from. We dont have this option at this time so yes this could be an issue for some.
Makes sense to me if you see the size of the F-Sport compared to OEM. Those end-links where not designed with the F-Sport in mind.
Makes sense to me if you see the size of the F-Sport compared to OEM. Those end-links where not designed with the F-Sport in mind.
Thread Starter
Rookie
Joined: Oct 2008
Posts: 90
Likes: 0
From: tx
I experienced the temperature dependence that bokmeipai does (less noise with higher temps, either from higher outside air temp, or from the car warming up). It was a cooler morning in Dallas today (80) and the knocking just after starting my car (low speed) was *much* more noticeable on a bigger variety of bumps. Within 10 minutes, it was "back to normal" which is only noticeable on very specific types of bumps (small) at slow speed.
I'm wondering if cranking up the torque on the links could help. I'm assuming that my dealership install would have torqued them to 84 Nm as spec'ed in the instructions. Anyone with a torque wrench and knocking willing to experiment?
I'm wondering if cranking up the torque on the links could help. I'm assuming that my dealership install would have torqued them to 84 Nm as spec'ed in the instructions. Anyone with a torque wrench and knocking willing to experiment?