Vibration at high way speeds?

hey,
I was just wondering if anyone had any advise for me. I have an 03 x with 60,000 miles on it. At highway speeds theres always a little vibration in the steering wheel and the whole car. The vib isnt all that bad, but its just annoying. I like haveing a smooth ride on the highway and this little vibration drives me crazy! I had new tires put on a couple months ago, michilen pilot exaltos. Nitrogen in the tires at the correct pressure. I had the place do road force balancing as well to have the best balance available. Any sugestions?

Hunter Road Force should take care of it

Hopefully not driveshaft... if you have any warranty .. get it to the dealer lickety split.

no warrenty left on her. I had the road force balancing done twice. The cars fine below 55-60 after that is when the little vibes start happening

Tires need road force balancing or replaced..like Caddy said..I had the same thing.

I have had lots of balacing done also.. I have concluded that it is the drive shaft.
If you go back to the tire place. have them put the car up in the air and then put it in first gear at idle, and then look at the drive shaft. Mine clearly wobbles about a mm. the flanges are straight and true. the hanger bearing is also fine.
 
It is not really fair to the tire guys to keep re-balancing if you dont check out other possibilities. 
 
 

well if it is the drive shaft, what should I do to have it fixed or replaced?

Okay..that's true Bo, But does a propeller shaft suddenly go out of balance?..wouldn't the propeller shaft have to be untrue from the beginning?..I'm assuming of course that Scuba just started to experience this vibration after many miles with no problems....So that's what leads me to think it's the Tires..But you maybe right..I just don't see it as possible, if he's never had the problem before.

i had the same problem. the car was fine up to about 65. then between 65-75 a slight vibration. I had the tires checked and they said the rims where slighty bent. They put the bent rims on the back and it helped. I plan on replacing the rims in the spring and it should clear the problem. how are the roads where you live? the roads here are jacked up so a bent rim is no shock.

I also had the exact same problem. Any speed above 55mph I'd get a vibration. I also had new tires, balanced twice, then finally road force balanced. It did NOT fix the problem. Luckily I was still under warranty. I finally talked the dealer into replacing the drive/prop shaft. (They also thought it was a tire.) Well, that fixed it. Smooth as glass. It would have been expensive if it wasn't under warranty. The part alone was around $900! Good luck.

If your brake rotors are warped, could also cause shimmy in steering wheel at those speeds. 9/10 times though on x it is propshaft.
Try removing it at both ends (6mm hex) and rotate shaft 180 degrees. See if changes prior to buying new one.

quote:

ORIGINAL: GMAN04X

I also had the exact same problem. Any speed above 55mph I'd get a vibration. I also had new tires, balanced twice, then finally road force balanced. It did NOT fix the problem. Luckily I was still under warranty. I finally talked the dealer into replacing the drive/prop shaft. (They also thought it was a tire.) Well, that fixed it. Smooth as glass. It would have been expensive if it wasn't under warranty. The part alone was around $900! Good luck.

Glad they fixed it..I'm aware of the Prop-shaft problem the X had..But the question yet to be answered..was this vibration there from the beginning, or did it appear a while after you had it?

I bought the car with 40,000 miles or so. It always had the slight vib at those speeds from when I got it. 

Thanks for the reply...Hopefully I can get answer from someone that had the car from new with this problem...