Vibrating steering wheel when brakes are applied

Tiny
ALEWIS
  • MEMBER
  • 2002 FORD MUSTANG
  • V8
I purchased new tires for my daughters 2002 Mustang GT. The following day she noticed that the steering wheel would vibrate when she applied her brakes. This had never happened prior to installing the new tires? The tire shop said her rotors were warped and need to be replaced. Would the warping of the rotors be caused by the way the tires were installed? Could this be a problem that was there prior to getting new tires?
Saturday, February 19th, 2011 AT 2:18 AM

1 Reply

Tiny
98MUSTANG275K
  • MEMBER
  • 1 POST
The rotors on the front of a Mustang are held in place by the rims and lug nuts. When the tires were replaced some dirt/crap got between the rotor and hub. This makes it act as if the rotor is warped. And it will become warped if left like that. Best fix is to remove the wheels, brake calipers (Don't take the hose off the caliper(s) or you'll have to bleed the lines), and rotors. Clean EVERYTHING with brake cleaner, nothing else! Reassemble being careful to seat the rotors fully against the hubs. Best way to do this is by installing 2 lug nuts (by hand wrench only) with the flare out, then put the retainers (the little flat washers with the tabs on the inside diameter) on 2 other studs to hold the rotor in place. Remove the 2 lug nuts and replace the wheel, install the lug nuts, and torque them correctly.
I've also been told that on ANY car that has rotors mounted like this it is best to NEVER use any kind of powered impact wrench to install the front lug nuts. This alone can mis-seat the rotors, or even make them slightly out of round, which because of the Mustangs' sensitive steering, you will feel as vibration when applying the brakes.

Hope this VERY long note helps.
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Saturday, August 13th, 2011 AT 1:59 AM

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