My 2003 Turbo has a problem at 80 miles per hour and the shop I have taken it to can not figure it out. They installed new tires and balanced them twice but still it shakes. I only have about 23,000 miles on it. I hope the suspension isn’t bent – David
A – I am happy to help, I see this all the time. First of all, to really experience this problem, the shop would have to DRIVE your car at 80 mph. That’s pretty tough around here but how else can you experience the problem. I’m sure that the tire store or the shop did not drive your car that fast. It is a very intimidating car.
I suspect a bent wheel since thousands of otherwise earnest and qualified techs have balanced a bent wheel to Zero imbalance only to have the car still shake on the road. Slightly less likely, but still possible, is a bad tire. It is possible to have a totally new tire with a “slipped belt” make it past the quality-control robots and make its way onto your car, which will also cause a shake no matter how well the tire/wheel combo is balanced. Unless you have hit something hard enough to bend a wheel, AND the suspension, a harmonic shake won’t originate with the chassis. MC