[ooshnoo]

Just as the title suggests, when driving at high speeds, say 80mph, the car seems to have a very slight vibration and the steering wheel shakes. It's by no means bad, and is tolerable, but it doesn't happen on my Grand Prix or Trailblazer when driving the same expressways.

Any thoughts on what I should have the stealership look at?

 

[geewhiz]

Just as the title suggests, when driving at high speeds, say 80mph, the car seems to have a very slight vibration and the steering wheel shakes. It's by no means bad, and is tolerable, but it doesn't happen on my Grand Prix or Trailblazer when driving the same expressways.

Any thoughts on what I should have the stealership look at?

I do have a few thoughts on this. A few years back, when I had two Grand AMs, they both did the same thing. After a while I replaced the tires on both cars and yet the same thing, vibrations at higher speeds. After some time I took one of them in to have the tires rotated and balanced. After my wait the shop manager said, "Ok Sir, your cars ready" well I noticed the brake dust was still on the front rim. ? HUM? I asked the manager if the tires were remounted, he said no. I asked him why the tires were not rotated. He said, with a look of embarrassment, they should have been rotated. So the shop manager personally pulled the car back in re-balanced and rotated the tires. When they were done and I drove the car off onto the interstate it drove so smoothly it felt like a different car.
I said all of that to say "It may be your shop not doing a good balancing job".
I would ask them to balance your tires again.
It’s just a job to them. It’s not their car.

 

[ooshnoo]

Thanks "Whiz"!

That does seem like a logical possibility. I went through 3 total hub bearings on my Grand Prix in a year and a half, so I was a bit paranoid since I just bought this G6 a month ago used.

I'm due for an oil change soon so I'll have them check out the balancing.

 

[geewhiz]

I know this might seem to be odd but since then I looked around for a different shop to do my tire services. I would go to a shop and observe the employees just to see their work habits. I did explain to the manager why I was there and now I found a shop that seems to take a little pride in the work. Well the outcome is my tires are balanced right the first time.
Its ashame I had to do this but in the long run I think I did the right thing.

 

[ooshnoo]

Turns out I had a bubble on the inside of one of the front tires, which they couldn't fix, so I just bought 4 new ones and all is good.

 

[geewhiz]

Turns out I had a bubble on the inside of one of the front tires, which they couldn't fix, so I just bought 4 new ones and all is good.

Good deal! What brand tire had the bubble and what brand is your replacements?

 

[ooshnoo]

Good deal! What brand tire had the bubble and what brand is your replacements?

The bubble was on a Continental tire...which were on the car when I bought it, and my replacements are Michelin's. At the NTB I went to it was either that or Yokohama tires even though the M's were 80 bucks more a piece.

 

[geewhiz]

Good choice, although I like the Yoks too.