555

Ok I searched and didn't find much, but at around 10 mph or so(I think it keeps doing it through out the entire mph range just slower and more noticeable here) I get a really harsh surging vibration. You can here it and feel it and its very freaking annoying. Any ideas? Its seemed to have gotten worse lately but its been doing it for some time. Rearend maybe? I still havent had my TSB performed for the rearend noise and vibration when sharp turning but I don't know if that has anything to do with it.

Britinastang

Is at a particular rpm? and worse on cold start?

555

It vibrates throughout the entire RPM band(when driving). I paid attention to it the whole way home today. If the car is sitting still it doesn't do it but as I start moving it begins and the viration surges get closer and closer together. Almost like one of the wheels is causeing it. It does it no matter cold start or not. I am lowered on 20s if it makes a difference(probably) but its always done it just seems to have gotten worse here lately.

theedge67

Could be your tires/wheels not being balanced properly. Try taking them to a tire shop and having them check the balance on them. Usually only a few $ per wheel.

555

Yeah the wheels def are balanced incorrectly. Why would I notice the vibration at lower mphs though, usually unbalanced just vibrate at higher speeds(which mine do) right? It feels more like a rubbing vibration.

flguy

If it starts at 10mph and continues no matter what speed you drive above that, it sounds like something connected to the wheel itself, like the bushings or bearing being out of whack. You're right, an unbalanced tire would not be noticeable until higher speed. Perhaps the rims themselves are warped? But I would definitely check where the wheel is attached.

NuPony05

Others from this forum have discussed vibration problems after changing to after-market wheels. During the assembly, a "star" type of washer is placed over 2 of the wheels studs to hold the rotors onto the hub. You may want to remove those washers as they may be preventing your after-market wheels from mounting correctly, which could cause a vibration problem. It's worth a shot.

555

I already did that when I put the wheels on cause I had read about em on here. The vibration can be felt around 8 mph till about 18 then it pretty much goes away. I tihnk I'm gonna try putting the stock wheels back on and seeing how that goes.