I had a sway bar link loosen on my G35. You can feel it when you corner. The car just feels loose and sloppy. I took it in and they said it just needed to be tightened.
__________________ 2007 GS350 / Tein CST coilovers with Tein EDFC / Lexus F Sport Sway bars / Lexus F Sport cold air intake / Lexus OEM ipod adapter/ 3M window tint / Passport 8500 radar Detector / TSW Snetterton wheels 20x8.5 with 245/30/20 and 20x10 with 275/30/20 Michelin Pilot Sport A/S Plus tires.
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.
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 have the same noise problem on my 350 AWD. It seems to me pronounced when the weather is a little cooler in 80-85 degree rannge. The temps hit in the 90's last week and during that day it was dead silent even going over cobblestone streets ! If anyone has a solution to fix please post.
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.
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.
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
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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 don't think it has anything with deforming since my car is parked in garage on level floor. In fact it made this thump when I picked up car from lexus after install. I thought it needed to break in. It may be possible the bushing is too hard, when temps outside hit 90 & above thumping goes away. I suspect higher temps make rubber bushing softer. This is an OEM Lexus part it should be tried and tested before selling to public.
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.
__________________
Mike
-06 GS430- Work | KSport | Rotora | Lexon | F-Sport | JDM Side Mirror | Custom Exaust | SRT SuperCharger | Custom V1 Radar | Mobile HID | Garax
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.
ETA? Color me impatient, but if it works I want it...
L
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2008 Lexus GS460: Smoky Granite Mica, Customized Black Tanabe Exhaust with Black Pearl Tips, 30% Tint, F-sport Sways, F-sport Wheels, F-sport Lowering Springs (I hope they fit), Complete LED replacement, Leather Steering Wheel and Gear shift, VaisTech VML system and the best wax money can buy (reapplied monthly ;-D)
For all your parts needs, don't forget to buy from Sewell Lexus in Dallas!!!
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.
That would mean that we would need to replace the endlinks on a normal basis...in one or two years time... as they would wear out faster than with the stock bars? Something is not quite right.
^ 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.
__________________
Mike
-06 GS430- Work | KSport | Rotora | Lexon | F-Sport | JDM Side Mirror | Custom Exaust | SRT SuperCharger | Custom V1 Radar | Mobile HID | Garax
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?
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