i just put some new tires on my front wheels today, now when i go under 40 i can hear the tires. and when i get under 30 and come to a stop they vibrate, enough to make some plastics in my interior rattle. whats up with this? they were balanced, i see the sticky weights. do they need to be broke in or something? i used to have 205/40/17 on there, now i have 215/40/17 on. i dont know what the deal is

 

have them re balance and road force the tires.

good luck.

 

+1

 

i hope that takes care of it, i planned on going in for an alignment this weekend. what is road forcing?

 

Try rebalance and road test them. You might have lost a weight
or the tire guy might have put the weights on wrong.-Bob
Get the tire pressures even, side to side.

I have found other problems by:
I have found problems on a particular side, by making slow
circles in an empty parking lot, and listening/feeling through the wheel.
Then going slowly in the opposite direction. It will sound/feel differently, if one tire has problems.

and some times for no reason whatsoever, a brake disc warps, and will produce a shake as a person is braking hard. Weigh the replacement cost of two discs, versus having BOTH discs "cleaned up". It doesn't need a lot taken off, unless the parts guy is trying to sell new discs to you.

Keep us posted as to what you find.-Bob