Well I am taking in the 03 Cobra to the dealer today. When I apply the brakes there is a vibrating or pulsation in the pedal and you can feel and hear the pulsation on the brake pedal. Anyone have this problem? Any ideas?
I have a similar situation, to me it feels like the Anti-lock brakes are coming into effect too early. I havent had it checked so it's only my thoughts.
the brake pedal will pulsate from warped rotors because the warpage will cause the caliper piston to move in and out of its bore which will be felt in the pedal. but I am wondering what the noise is. is it like a buzzing noise? if it is it could be ABS. also ask the dealer which rotors they replaced. they most likely replaced just the fronts and the rears could have runout too. it is also possible that your hubs are warped but not very likely. look at your rotors through the wheels if they look dark with a blue tint they have been overheated and are warped.
does it happen at all speeds? is it only in the pedal? whats the noise sound like? a buzzin sound? maybe a pump running.. id guess ABS...
could be the rear rotors, if only in the pedal the rotors are out of paralel(sp) but you will feel this in the car as you stop also.. it kinda has a ryhthimc jerks slightly slowing down
if the car has to be moving id guess ABS may have a speed sensor acting up.. or worse...