07 GS 350 Shaking at 100MPH
06-06-17, 12:27 PM
#1
Intermediate
Thread Starter
07 GS 350 Shaking at 100MPH
Hello! Guys I have my GS 350 for 4-5 months by now and today was the first time I give it a good acceleration around 160kph or 120mph for a couple of seconds and I felt this shaking through the whole car.
My car has new tires that have been balanced 1 week ago and the car was aligned a week ago as well, the curious thing is the vibration occurs without pressing the brake so as the logic tells me its not a problem with the rotors or brakes, and no burning smell when stopping so the calipers are not sticking either.
Anyone had experienced something like this before? I know that the wheels I got are "Repaired", so that might be the case that the wheels on the inside are not completely round... The strange thing is that I felt this vibration only on high speed.
I will try again today to push the car at 120mph+ and see if it was the road condition or if its really the car.. Also I am not that expert in suspension wise components, what components can cause this vibration that I have to check and take a loot at?
I am also looking for some good GS 460 wheels if anyone knows where to get them let me know... Thanks in advance!!
My car has new tires that have been balanced 1 week ago and the car was aligned a week ago as well, the curious thing is the vibration occurs without pressing the brake so as the logic tells me its not a problem with the rotors or brakes, and no burning smell when stopping so the calipers are not sticking either.
Anyone had experienced something like this before? I know that the wheels I got are "Repaired", so that might be the case that the wheels on the inside are not completely round... The strange thing is that I felt this vibration only on high speed.
I will try again today to push the car at 120mph+ and see if it was the road condition or if its really the car.. Also I am not that expert in suspension wise components, what components can cause this vibration that I have to check and take a loot at?
I am also looking for some good GS 460 wheels if anyone knows where to get them let me know... Thanks in advance!!
Last edited by guzzy92fs; 06-16-17 at 03:09 PM.
06-06-17, 01:37 PM
#2
I would check your wheels for bends, have a shop put them on the wheel balancer and inspect each wheel your self. The smallest bend will cause a shake, even if it balances fine.
You can also jack up each wheel and have someone spin the wheel and you inspect the inside, but careful not to spin the wheel from the wheel as our brakes are huge and the clearance between them is very small and you can easily get a finger caught inside
that came from my experience btw
You can also jack up each wheel and have someone spin the wheel and you inspect the inside, but careful not to spin the wheel from the wheel as our brakes are huge and the clearance between them is very small and you can easily get a finger caught inside
that came from my experience btw
06-06-17, 04:12 PM
#4
Well I'm going to assume that your tires are either W- or Y-rated, or at the very least V-rated, so we'll discount tire deformation.
If it only happens at 160 mph there's nothing wrong. At that speed, you're really operating the car either at the extreme edge of, or more likely outside of, it's design envelope. It sounds like you found one of the resonant frequencies for the chassis or subframe. Did that road have a specific, repeating texture?
If it only happens at 160 mph there's nothing wrong. At that speed, you're really operating the car either at the extreme edge of, or more likely outside of, it's design envelope. It sounds like you found one of the resonant frequencies for the chassis or subframe. Did that road have a specific, repeating texture?
06-06-17, 06:14 PM
#5
I've gotten my 460 that high, and felt the same, if you brought it in I doubt they'd find anything "wrong" because I doubt anything significant is wrong but at that type of speed even the slightest things could cause that, are they max performance summer tires? I'd also recommend replacing all four struts and bushings if you're planning on driving that fast on a regular basis lol and get some good rotors and pads.
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06-06-17, 07:25 PM
#8
In that case, try driving the same speed on a different road before you go looking for problems. Might just be that your new tread pattern didn't play nicely with the texture on that particular stretch of road at that speed. If it still happens, then the suggestions above have the next steps fairly well covered
06-07-17, 09:03 AM
#11
Lead Lap
I had the problem where my car would wobble around 70+ MPH, and even though it was balanced at the Lexus service shop, twice, they still just couldn't get it right. After getting beyond aggravated with this, I ended up looking into a high-end alignment shop close by, and they were able to correct the problem.
Here's the info on the shop I took mine to (I know it's in WA, but maybe you can compare it to a local shop in your area):
http://trulineseattle.com/
Even though my Lexus service center claims to have "the Cadillac" of alignment machines, it all comes down to whether or not the tech knows what they're doing.
Good luck!
Here's the info on the shop I took mine to (I know it's in WA, but maybe you can compare it to a local shop in your area):
http://trulineseattle.com/
Even though my Lexus service center claims to have "the Cadillac" of alignment machines, it all comes down to whether or not the tech knows what they're doing.
Good luck!
06-07-17, 11:49 AM
#12
I had the problem where my car would wobble around 70+ MPH, and even though it was balanced at the Lexus service shop, twice, they still just couldn't get it right. After getting beyond aggravated with this, I ended up looking into a high-end alignment shop close by, and they were able to correct the problem.
Here's the info on the shop I took mine to (I know it's in WA, but maybe you can compare it to a local shop in your area):
http://trulineseattle.com/
Even though my Lexus service center claims to have "the Cadillac" of alignment machines, it all comes down to whether or not the tech knows what they're doing.
Good luck!
Here's the info on the shop I took mine to (I know it's in WA, but maybe you can compare it to a local shop in your area):
http://trulineseattle.com/
Even though my Lexus service center claims to have "the Cadillac" of alignment machines, it all comes down to whether or not the tech knows what they're doing.
Good luck!
06-07-17, 10:06 PM
#13
First option, if you can find a shop with a road force balancer, get it done. It's the next cheapest step before you start looking into other things. Tirereview has a great article about it if you aren't aware what that is and the difference between that and a spin balance.
Second option, rotate that rim that you think is the culprit to the back and try it again (if it isn't already there). If the vibration/issue is less noticeable or therefore completely gone; it's obvious it's the wheel. If it's already in the back, move it to the front and the vibration/issue should get worse or be noticeable at a slower speed.. i.e 80mph.
Lastly, and very lastly after you have exhausted a 3rd, 4th, 5th option.. it could be a wheel bearing issue. Although unlikely if you do not notice any vibrations while turning and at lower speeds or have done the ever so common rock the wheel method.
Second option, rotate that rim that you think is the culprit to the back and try it again (if it isn't already there). If the vibration/issue is less noticeable or therefore completely gone; it's obvious it's the wheel. If it's already in the back, move it to the front and the vibration/issue should get worse or be noticeable at a slower speed.. i.e 80mph.
Lastly, and very lastly after you have exhausted a 3rd, 4th, 5th option.. it could be a wheel bearing issue. Although unlikely if you do not notice any vibrations while turning and at lower speeds or have done the ever so common rock the wheel method.
06-09-17, 06:23 PM
#15
Intermediate
Thread Starter