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Alexandria, Va
Work on them all...
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1,206 Posts
You may have an issue with road force variation. What happens in some cases is that the tire changes once it's placed on the car in a loaded situation. There are machines out there that have the capability to check this. Chances are since they were new tires they didn't check this, they probably just spin balanced them.

First thing I would do is find out if the shop you used to mount and balance the tires has one of the machines that can do this. If they do find out if they performed a road force balance on your tires, if they didn't then that's the first place to check.

If they already did a road force balance then you'll need to start looking in other areas, possibly a bent wheel or a front hub/bearing problem...
 

·
Alexandria, Va
Work on them all...
Joined
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1,206 Posts
The Hunter machine will tell you if there is a problem with the rim, tire or both... So if they road force balance all the wheels/tires and you still have a problem then you know to look elsewhere... The key is getting the road force reading as low as possible. GM says less than 18 lbs for passenger car tires is the limit. We try to get the reading as close to 10 as possible, usually by rotating the tire on the rim.
 
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