We have an ongoing issue with our 2015 RT limited. What seems like a warped rotor on the front left wheel. What happens when applying the brakes is a pulsing in the brake pedal and hand brake (after market) and an obvious vibration in the left front fender. One thing that seems odd is that the condition is not bad when first starting out but after some time the pulsing and fender vibration become almost violent. The rotor was replaced a couple of years ago without any significant change. Our Best warranty is coming to an end and we want to have it looked at again. It seems unlikely that the rotor would warp and then return to a neutral state after sitting for a while. Because of the pulsing, it seems unlikely that anything other than a brake component would be causing this. Any suggestions?
Thanks in advance.