paireno

When I put my summer tires and wheels (215-50-17) and using firmly brakes at speed over 60 mph, I got intense vibrations on brake pedal, steering wheel and all over the car. The passenger feels it easily.

The balancing of tires have been checked as the aligment and the wheels are not damaged. In winter time, with stock wheels (16 inches), the car goes very well at any speed and any kind of brakes using.

Can somebody give me infos, suggestions on what causes that problem and how to correct it?

Thanks for your help, it will be appreciated

ChevyMgr

Rotors are warped, and could have been caused by the lug nuts being over torqued when the summer wheels were put on. You will need to have them resurfaced to fix. 100 lb ft is spec for your lug nuts.

Snoopy

paireno....

Do I understand you correctly?? This problem started immediately after installing the new WHEELS AND TIRES ?????

If that's the case, then the wheels were installed improperly. Are they aftermarket wheels? Do they have a relief cut/milled into the wheel where the rim meets the hub?

You might want to recheck the mounting and maybe remove the retaining rings on the hub....generally 2 on each. Also, you need to remove the rust that built up on the hub during the winter. The wheel surface and hub surface must be absolutely clean.

If it took some time for this problem to occur, then it may be the rotors.