LEXISM

iTrader: (2)

when Im driving on the FWY the seat vibrates back and forth ..this bugs ...is ther any fix to this?

joshoowa

iTrader: (1)

can get someone to sit in that seat haha. i had the same problem but when i switched to coilovers it went away.

some people have said that the rail screw are loose, im not sure though

Lexis11

The passenger seat or all of them???
Either way good luck, I have had this problem forever and no one seems to have an answer, everyone will say it is a balancing issue or front end but any way you slice it there is no defenite solution for this, I dont care what anyone says.

LEXISM

iTrader: (2)

just passenger...I'll check the screws

chuckb

my passenger seat vibrates when my tires aren't balanced right. I was back to the tire shop 4 times because of this and steering wheel feel. you can see it shaking, very annoying. I think it may also mean your rear tire is out of round or balance or both.

my car(28k miles) is now smooth at all speeds except about 62mph I get a very mild shimmy I can feel in steering wheel. it only happens sometimes and 0-60 is smooth and 65-110+ is smooth

chicagoblknazn

This is well known and documented issue with our cars on the highways. Do a search and you'll find out that some members have had luck having wheels rebalanced, tires replaced, rail screws adjusted, etc., but there is no definitive solution as it could be many reasons why the seat shakes.

Mine does as well, but it doesn' make any noise so the thing can shake til it vibrates and explodes for all I care. I only notice it when I am thinking about it in the car and looking.

alredxiii

iTrader: (13)

That's like asking if you've had water or food during the day...mine shakes like a geriatric man with a gun...Hopefully when switching over to coilovers it should fix my problem

LEXISM

iTrader: (2)

how do coilovers fix the problem ?

alredxiii

iTrader: (13)

I'm just reading from what other people have said when switching over to Coils, who knows if it actually really works or maybe it's a placebo!

verylost

Assuming the seat is vibrating due the car hitting it's harmonic frequency while on the highway, coilovers will change the conduction properties of the car and thus change the harmonic frequency of the car.

chuckb

interesting theory. I've heard our car hits harmonics at 62mph(don't know what it means though), and that exactly and only where I have any vibration now. and it's only sometimes. all these threads on bushings and ball joints have me on supersensitive mode too.


I'll let you guys know, I happen to have a set of Tein CS waiting to be installed right now.

LEXISM- I'd look into your rear tires and make sure they are not out of round or out of balance. I had a brand new Pirrelli that was out of round and causing my passenger seat to shake at 78mph. You could feel it in the center console too.

PHML

iTrader: (33)

Is the problem with the seat itself? Or the car vibrating while in motion?

I had a problem with my driver seat a couple years ago....it rocked backed and forth....at first, i thought it was the seat mount came loose, but after taking it apart, it was the hex bolt behind the seat control unit that got loose....that hex bolt mounts the seat cushion frame to the seat rails.

Pete

Stage3

iTrader: (3)

I have that problem as well. Mine is in the area of 75-90. Other than that, its as smooth as a cloud!

LEXUS_KID

iTrader: (4)

Man I gald I don't have this problem

jaja

yea... i had the shakes too, but i had my wheels balanced and it got better... not gone but alot better..