I have a slight vibration in my steering wheel on the fwy from about 70-80 mph. I have 17" volk te37. My suspension includes H&R race springs, Koni Yellows, and skunk2 camber kit. The vibration is ******* scary if I have to hit the brakes at this speed or anything over 50 mph for that matter. When I slowly come to a stop I can feel a slight wobble in the rotor. Is it the wheels not being balanced properly, or are the rotors messed up? Any help would kick ***! thanks in advance

 

alignment, or wheel balance....

 

Right on thanks!

 

Does the vibration happen only when you're braking, or all the time?

If it's all the time, then it could be wheel balance (most likely) or possibly a suspension problem (e.g. worn bushings). Alignment? Probably not, but worth checking.

If you have another set of wheels and tires, known to be balanced, then it's easy to narrow it down by swapping them onto the car. If it's still doing it with the other set, then it's something on the car's suspension. If it's not, then it's something in the wheels and tires - the wheel balance or a bent or out-of-round wheel or a tire defect.

If it's only when braking, then the rotors are warped, or there are uneven deposits of brake pad material on the surface of the rotors.

 

Damn.... thnks for all the info. It vibrates both when I am driving over 70 mph, and vibrates when I brake too. I would use my blades but they got jacked out of my ******* garage! Bastards

 

the wobbling at highway speeds is 99% balance,and if its doing when braking also the rotors may be warped

 

this has already been said, but figured i'd throw my .02 in.

the vibration at speed = wheels out of balance
the vibration under braking = deposits on rotors, get them turned. no such thing as a warped rotor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike C &raquo;</TD></TR><TR><TD CLASS="quote">the vibration under braking = deposits on rotors, get them turned. no such thing as a warped rotor </TD></TR></TABLE>

Actually, there is such a thing as a warped rotor. But you're correct that vibration under braking, particularly on a performance car, is often caused by uneven deposits of brake pad material on the surface of the rotors (and is often misdiagnosed as warped rotors).

It's easy tell the difference; if it's uneven deposits of brake pad material, you won't feel the vibration in normal braking in street driving; you will feel it only when you get the brakes really hot, like in a major sudden stop from highway speeds. But if the rotors are actually warped, you will feel a vibration even when the brakes aren't that hot, like in mild type driving.

Turning or replacing the rotors is the solution in either case.

 

I've read otherwise, but I've got no real data to prove it, just that stoptech article. Everyone is entitled to their own opinion... When I get some vibration I either break out some sandpaper, throw on my track pads (might as well be sandpaper) or toss on new rotors (they are cheap enough)

 

The vibration is pretty violent slowing down at high speeds, and noticable when coming to a stop. I just installed some Koni Yellows and I think the alignment got jacked up when I did that becuase intially I lowered my car to the lowest setting then raised it back up

 

bad alignment wouldn't cause a vibration, but it may cause really quirky handling. get new rotors (cheap blanks, probably $20 a pop) or get yours turned (like $10 a pop).

 

Thanks Mike, I'll keep you guys posted.