Question about 2008 Chevrolet Suburban

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Steering wheel & inside vibration issues

Hello. Just bought new 2008 Suburban with 20inch wheel/tire package and having lots of vibration at highway speeds and sometimes around town. Had dealer balance, replace one tire and then road force balance again with no fix. I hear replacing with better tire might solve balancing issues. Tires are OEM Bridgestone H/L Alenza's and they do not ride good. Any ideas/thoughts?

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  • Anonymous Apr 06, 2009

    Goodyear tires on 2008 Suburban and inside vibration after hitting bumps and at high speeds. Suspect tires need to be deflated to 32# and wonder if suspension is not "tuned" to tires..............

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Yes...That's probably a 50 or 55 series tire which by the nature of it's short sidewall will give you a "stiff" ride as compared to a more typical 70 series. Verify that the vibration does not come only when you are braking or accelerating. If you vibrate only when cruising then 95%(unofficial stat) of the time it comes from the tire/wheel/balance assembly.

Posted on Sep 16, 2009

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Hello, I see you may a lot of changes and replaced a lot of parts. We leased an Explorer the same Year as yours. In our case there was a slight noise as well as vibration. The problem was the Front Hub bearings, They were bad at 18000 miles.

There are a few things I want to suggest. The spinning of the wheels on the lift will not load the bearings. A Dyno table can get everything turning with a load on it. As your vehicle is a 4x4, most Dyno's were 2 wheelers. You would have to call to find one for a 4x4.

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Where is the free help??/


If you are sure the suspension is good and that the axles are NOT the problem then this leads to 2 things. Weak struts / shocks and possibly unbalanced tires.
Beings that your not feeling it in the steering wheel I would assume the problem lies in one of the rear wheels. If you at one time used a product like flat fixer and it is not evenly distrubuted inside the tire you will experience vibration.

Have all of your tires balanced and if you sitll have the issues with vibration at speed then you need to start looking at shocks and struts as the source of the problem.

Thanks for using FixYa.

Kelly

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