Spiffyjiff

i recently got pads, rotors, and sensors done at dealer and put on about 100mi before my last DE. after the 4th or so run session, i noticed a...pulse (vibration?) in the brake pedal. and ever since the DE, i have noticed it street driving also. of course, it was more noticable during DE due to the extreme braking, but on street i def notice it even tho it's slight.

so took it back to dealer who said, because there's no steering wheel vibration, the problem may be emanating from my left front tire - a bridgestone RE050A - which is admittedly trashed and slightly chunky from DE's. (altho note: driving at whatever speed, i never feel any vibration in the car due to that trashed tire but he says under braking specifically, the problem can become magnified/increased, thus creating the pulse in the pedal.) the dealer DID say they'll still cover warranty if new tires dont solve the problem, so i'm not really screwed, i would just like to know now/get it fixed if it's more serious.

my questions: does that even sound possible - that it's the tire causing brake pulse??? is it more likely warped rotor(s)? how about brake line probs?

any thoughts appreciated.

Edgy01

A bad tire can magnify things considerably. Whether an ABS "pulse" can be manifested will have to be seen.

tstafford

My bet is on the tire.

jason952

chek the tire, otherwise maybe rear rotors...

Fahrer

Also, check to make sure the mating surfaces between the wheel and hub are clean with no debri. I have experienced a problem with a small amount of dirt causing a problem that seemed to be a balance issue.

machina

warped rotor