Tire balance problem

[818Guy]

No problem. Good luck. Trouble-shooting can sometimes be a real pain in the rear.

[jditom]

Originally Posted by MD4.6

Ok, so I got new front tires last week at the tune of $860.00 Now I have a some serious vibration when driving 50-65mph. I took the X back to the tire shop last night and they ended up pulling all four wheels off and found one of the back tires was 5ounces off. The guy said that it should be ok now. Well, its not, in fact it didn't help at all. Could there be something wrong with the new tires other than balance? Any idea's?

Sometimes the only way to tell if the tire is defective is with a road force balance. I had a new set of Perrilli's were one failed the road force balance and they gave me a new one which solved the problem.
Only a few shops have the right equipment to do this.

http://www.gsp9700.com/pub/technical/4202T/5THEO004.cfm

[fangbosun]

MD4.6, you don't have to apologise cause you're a girl!!!!!!!!!!

[MD4.6]

Ok, problem found!!! So it turns out one of the back tires has gone bad and it was just weird timing that it to happen when the front tires were replaced. What sucks is that the back tires still had plenty of tread on them but because its an AWD the tire shop said not to just replace that bad one. They said Michelin would give a credit for the bad tire but not the other. I guess Michelin in one of the hardest companies to deal with when this sort of thing happens. What I also learned was Michelin Diamaris are only rated for 20,000 miles -

[fln8tive]

Originally Posted by MD4.6

Ok, so I got new front tires last week at the tune of $860.00 Now I have a some serious vibration when driving 50-65mph. I took the X back to the tire shop last night and they ended up pulling all four wheels off and found one of the back tires was 5ounces off. The guy said that it should be ok now. Well, its not, in fact it didn't help at all. Could there be something wrong with the new tires other than balance? Any idea's?

Did they do an alignment as well? Maybe the old tires were cupped and with the new (straight) tires any misalignment there may be now makes itself evident...also, some tire stores are not totally expert at using inner-rim wheel weights (as opposed to the crimp on types on plain vanilla vehicles...I had the same problem on a Volvo R car.

[MD4.6]

Originally Posted by accella4.4

Did they do an alignment as well? Maybe the old tires were cupped and with the new (straight) tires any misalignment there may be now makes itself evident...also, some tire stores are not totally expert at using inner-rim wheel weights (as opposed to the crimp on types on plain vanilla vehicles...I had the same problem on a Volvo R car.

The did the alignment as well. They said having to put 5ouces of weight on a tire that had been on the car for awhile was a sign of something going on. So they stuck the spare on and the vibration went away. Thanks for the imput.