Go Back   Club Lexus Forums > Lexus Model Forums > LS Models > LS400
Sign in using an external account
Register Forgot Password?

oscillating vibration at highway speed

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 06-13-14, 11:41 AM   #1
Greg5OH
Lead Lap
Trader Score: (0)
 
Greg5OH's Avatar
 
Join Date: Oct 2013
Location: Detroit/T.O.
Posts: 507
Default oscillating vibration at highway speed

I have an annoying vibration that comes and goes with a steady oscillation pattern. at 80 kph and 120kph. I re balanced all my wheels twice and they balance out good. Wheels dont appear to be bent. I believe its from the front as my steering wheel jitters back and forth ever so slightly if your not holding it. All new BJs, tie rods inner outer, etc. Could it be a wheel with a slight hop to it that is causing this? This happens on throttle or just coasitng so i dont believe it is driveline vibration-however i will inspect and grease the U joints as i have yet to do so. (are they even greasable?)
Any other ideas?
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
__________________
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
auto couture magnifique
F19x10+6
R19x11+12
@Greg5OH
Greg5OH is offline   Reply With Quote
Old 06-13-14, 05:25 PM   #2
cobalt91
Lead Lap
Trader Score: (0)
 
Join Date: May 2012
Location: MI
Posts: 491
tuffluck1972
Default

Dont forget about the wheel bearings. If they're going bad they could cause this.
cobalt91 is offline   Reply With Quote
Old 06-17-14, 12:34 PM   #3
Greg5OH
Lead Lap
Trader Score: (0)
 
Greg5OH's Avatar
 
Join Date: Oct 2013
Location: Detroit/T.O.
Posts: 507
Default

hmm, dont feel any play in them anywhere, I shall recheck this. car has 120k miles on it, about 40k of those miles are with -4 degrees of camber with big offset wheels which shortens up the bearing lifespan for sure.
Lookin at 220 for timken bearings, both appear to be press in? (looking on rockauto)
__________________
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
auto couture magnifique
F19x10+6
R19x11+12
@Greg5OH
Greg5OH is offline   Reply With Quote
Old 06-17-14, 01:56 PM   #4
KA8
Lexus Test Driver
Trader Score: (1)
 
KA8's Avatar
 
Join Date: Aug 2007
Location: ca
Posts: 1,164
Default

I doubt its the bearings. I just got timkens and they appear to be a good brand. Check your suspension for loose parts. Do you have hubcentric rings? They will make a huge difference with aftermarket wheels
__________________

2010 Prius IV
1993 LS400
1993 Z32TT
KA8 is offline   Reply With Quote
Old 06-17-14, 02:17 PM   #5
Greg5OH
Lead Lap
Trader Score: (0)
 
Greg5OH's Avatar
 
Join Date: Oct 2013
Location: Detroit/T.O.
Posts: 507
Default

all suspension is good and tight just replaced every bit other than the fornt upper control arms which have less than 20k miles on them..but will check em.
yes have hubcenbtric rings and yes the wheels are on center.
__________________
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
auto couture magnifique
F19x10+6
R19x11+12
@Greg5OH
Greg5OH is offline   Reply With Quote
Old 06-17-14, 02:33 PM   #6
timmy0tool
Lexus Champion
Trader Score: (5)
 
timmy0tool's Avatar
 
Join Date: Sep 2008
Location: 909/626/714, SoCal
Posts: 2,713
Send a message via AIM to timmy0tool
Default

what suspension are you running on the air ride? coilovers, shocks?
__________________
lateral Gangsta
timmy0tool is offline   Reply With Quote
Old 06-19-14, 07:42 AM   #7
Greg5OH
Lead Lap
Trader Score: (0)
 
Greg5OH's Avatar
 
Join Date: Oct 2013
Location: Detroit/T.O.
Posts: 507
Default

D2racing double bellow bag over strut
you might be thinking its a blown shock? I dont think so. I gotta put my winter tires on and go for a spin to rule out the wheels. Honestly it might be a bent wheel with the crappy roads in MI here.. just a little out of roundness will definitely be felt.
__________________
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
auto couture magnifique
F19x10+6
R19x11+12
@Greg5OH

Last edited by Greg5OH; 06-19-14 at 07:47 AM..
Greg5OH is offline   Reply With Quote
Old 06-19-14, 04:35 PM   #8
timmy0tool
Lexus Champion
Trader Score: (5)
 
timmy0tool's Avatar
 
Join Date: Sep 2008
Location: 909/626/714, SoCal
Posts: 2,713
Send a message via AIM to timmy0tool
Default

i wouldn't rule out the shocks. it could just be your damper setting. change the setting and see if anything changes. i do not suggest you go full stiff or full soft however.

your current setting might be compromised, and even one click might make a difference. go 5-10 clicks first and go from there.
__________________
lateral Gangsta
timmy0tool is offline   Reply With Quote
Old 06-20-14, 07:43 AM   #9
Greg5OH
Lead Lap
Trader Score: (0)
 
Greg5OH's Avatar
 
Join Date: Oct 2013
Location: Detroit/T.O.
Posts: 507
Default

Ill give it a try. I did recently turn the front ones down 3 clicks. PO had them at almost full stiff. Ill go up just to get back to my known baseline.
__________________
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
auto couture magnifique
F19x10+6
R19x11+12
@Greg5OH
Greg5OH is offline   Reply With Quote
Old 06-21-14, 07:25 AM   #10
j three
Lexus Test Driver
Trader Score: (0)
 
Join Date: Jul 2004
Location: California
Posts: 866
Default

Maybe a warped rotor?
j three is offline   Reply With Quote
Old 06-25-14, 03:47 PM   #11
JavBez
Driver School Candidate
Trader Score: (0)
 
Join Date: Apr 2014
Location: MN
Posts: 25
Default

any updates on this issue? My car recently started to do the same thing. It would begin to vibrate at around 60-70 miles an hour. Steering wheel would shake as you step on the brakes the shaking gets worse then it would go away after a bit of cruising around then it would start up again. I notice alot of brake dust on the right driver side wheels compare to the other 3 wheels also.
JavBez is offline   Reply With Quote
Old 06-27-14, 07:21 AM   #12
Greg5OH
Lead Lap
Trader Score: (0)
 
Greg5OH's Avatar
 
Join Date: Oct 2013
Location: Detroit/T.O.
Posts: 507
Default

Sorry no updates yet, hoping to pull the wheels early next week. You say your shaking gets worse when you step on the brakes? that does sound like a warped rotor. Im thinking my wheel is bent, theyres some baddd roads aorund here. Im going to check the runout again. Theyres a rim repair shop down the road from me, but I feel uneasy giving them a 1000$ wheel.
__________________
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
auto couture magnifique
F19x10+6
R19x11+12
@Greg5OH
Greg5OH is offline   Reply With Quote
Old 06-27-14, 04:56 PM   #13
Shmee
Lexus Test Driver
Trader Score: (2)
 
Shmee's Avatar
 
Join Date: Dec 2007
Location: Victoria, BC. Canada
Posts: 1,314
Conglomeratemotorworks
Default

$1000/wheel? Man, there is an amazing shop out here that can have alll 4 done for <$2000 shipped back.


do you have a go pro? stick it to the car and point it at the wheels and go for a rip, you should be able to see the wobble if it's a wheel.

And 3 clicks down from full stiff is nuts, i'm 5 clicks up from full soft on my BC's...
__________________
Bags are for groceries!

My LS400 Build Threadl
Follow me on Instagram: @Conglomeratemotorworks

Last edited by Shmee; 06-30-14 at 09:03 AM..
Shmee is offline   Reply With Quote
Old 06-29-14, 11:50 AM   #14
peterls
Pole Position
Trader Score: (0)
 
Join Date: Feb 2013
Location: ca
Posts: 303
Default

Quote:
Originally Posted by Greg5OH View Post
I have an annoying vibration that comes and goes with a steady oscillation pattern. at 80 kph and 120kph. I re balanced all my wheels twice and they balance out good. Wheels dont appear to be bent. I believe its from the front as my steering wheel jitters back and forth ever so slightly if your not holding it. All new BJs, tie rods inner outer, etc. Could it be a wheel with a slight hop to it that is causing this? This happens on throttle or just coasitng so i dont believe it is driveline vibration-however i will inspect and grease the U joints as i have yet to do so. (are they even greasable?)
Any other ideas?
I had the same problem, and I was sure it was sometihing in the drivetrain... I replaced the transmission mount, it was a bit better. Then I replaced passenger side engine mount, it was about 70% better.
Finally I replaced the driver side engine mount and the vibration is completely gone.

Didn't have the time to read if you replaced all your mounts, but in my case, as much as I was certain that it was something to do with the driveshaft or something like that, it proved me completely wrong - luckily. And my vibration was not constant - it was more pronounced at certain RPMs and almost gone at some other RPMs. It was the worst around 75mph and not really there around 60pmh.
peterls is offline   Reply With Quote
Old 06-29-14, 11:50 AM
 
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Serious resonance issues hube GS - Fourth Generation 26 09-11-14 02:14 AM
speedo swap kph to mph? hatteroo GS - Second Generation 0 09-08-13 04:25 PM
slight vibration between 110-130kph - after new tires mattds ES350 (2007 - 2012) 7 07-21-13 07:28 PM
Changed Transmission now I have slight vibration 2jzgttegs GS - Second Generation 24 02-18-13 07:36 AM
Nicked Curb, Now Random Slight Vibration Rexus300 GS - Third Generation 24 01-19-08 04:58 PM


Tags
03, car, freeway, gs300, hwy, lexus, slight, speeds, vibration, vibrations

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 06:35 PM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info