04 gt vibration

[foytz14]

So the grand prix just within the last week has developed a vibration while accelerating at any rpm or mph. Took it in to work Friday and they checked over the car. Half shafts were good left front wheel hub was bad changed that last night. So what do I look for next?

[brandonl2000]

check tires and motor mounts as well.

though in my experience, motor mount can look fine all day long doesn't mean it's okay.

[tylerbinski]

where do you feel the vibrations the most?

- Gas pedal
- Seat bottom
- Steering wheel

does it shake when coasting?
Is there a difference when turning in either direction?



did you lower your car recently? lol

^_^

[Durk Diggler]

I'd jack up each wheel and make sure the other 3 wheel hubs are fine. Not sure of your mileage, but my fronts were both shot at 40k, I had a back one go around 65k, that one caused a lot of vibration.

[foytz14]

The entire car shakes. You can feel it everywhere. It has 111k right front was changed in june backs are just fine. No shake while coasting and no stock ride height

[Durk Diggler]

I bet it's a combo of your tires being toast and struts being shot. Struts on these cars start to die around 80k. Bad struts also wear your tires funny.

[foytz14]

nope new michelins all the way around. bad struts cause that much vibration?

[Durk Diggler]

Probably not, but your car only having 1 bad hub bearing at 111k is just not possible. Wbodys eat GMs crappy wheel hubs.
The thing that shook my car the most was when wheel hubs went bad.

[foytz14]

The fronts have been changed. Update. I just drove down the street to the store and guess what?! Car wasn't warmed up and didnt vibrate one bit got up to about forty and no shake!

[foytz14]

Once it warms up it vibrates again