mikevanle

iTrader: (1)

My steering wheel probably doesn't shake as bad as many people on here, because apparently some people are thinking of changing cars solely because of it. As mentioned, the wheel doesn't seem like it's shaking but it's noticeably shaking when you drive and put your hands on it.

However it gets worse and shakes really bad, to the point where the whole car shakes, when I start to brake between 55-80mph. Is this the usual case? For those that have the shakiness, is it worse when you brake or no?

PS - this is not a diagnostic test (so don't tell me to get my car aligned, wheels balanced, etc, cause this ain't a thread about it).

gottahaveit2

I have had that issue on both my GS400 and 430; and the reason is the brake disc runout. Over time, the GS rotors get warped. They still stop fine, but light pressure at the speeds you mention cause the vibration. The fix is really simple, not to diagnose your car, however if anyone else is reading and they are curious, it really only cost about $15 to fix it.

Remove the rotors and have them turned smooth for about $7/ea at OReilley's etc. They will only take off enough material to true them to new spec. If you have plenty of pad left, you can just true the rotors and keep using your pads until they wear out. If you are renewing pads, it is always best to turn the rotors at the same time so the new pads seat properly.

It is an annoying problem that can be quickly solved.

Solo_D33A

Check how much rotor you've got left too, if it's running thin then further thinning wouldn't do you much good as you'll have to change them soon...
Also, any slotted or drilled rotors can't be resurfaced.

mikevanle

iTrader: (1)

I somewhat ruled out warped rotors due to some reasons:
-I'm currently on big brake kits
-it happened before too when I was on stock brake system
-as mentioned, this is speed dependent (55-80mph). I'd think warped rotors will shae throughout.

It is odd because it'll shake badly when I'm braking, which totally leads to warped rotors.

DaveGS4

iTrader: (2)

Sounds pretty self-explanatory to me; if your wheels are shaking at that speed then the shaking gets transferred to the brakes as well.


Sorry you are totally incorrect, both slotted and drilled (and both) can be resurfaced.

rominl

iTrader: (4)

agree, and the shop just needs to have a better machine. not all machines can surfce slotted or drilled, but that can definitely be done

Solo_D33A

Dam, I've been ripped off before then. shxt >_< I've asked around in Vancouver and it seems like nobody knew how to do it, they all said it can't be done.

rominl

iTrader: (4)

ah, sux...

i talked to my shop who surfaced mine, i know the owner. he introduced me to his machine and said he had to pay several grands more, but it does the job

chuckb

get your car aligned, wheels balanced, etc.

















seriously, it's probably because of your non hubcentric nissan wheels.

Shawnmack

Agree with Chuck

mikevanle

iTrader: (1)

Wheels have huncentric rings on them 60-66. I gotta find another set to test on to rule out the wheels though.

sleeper408

iTrader: (6)

I agree. Taken from R&T. "...some shops do not want to machine slotted rotors because the groove forms an interrupted cut on the lathe and is a challenge for some machinists."