hi, i have a less than 3 yr old 2003 nissan altima. it has about 20k
miles in it and already the brake pads have worn out so much so that
the brake metal touched the disk rotor. had to replace disk rotors for
the rear wheels. spent about $500.

with the new brake pads i noticed that the brake pads were still
touching the disk rotor even when the brake is not applied. i can hear
slight sound of brake pad rubbing against the disk rotor while driving
at 3 mph. the mechanic said its normal. is this true!! won't this cause
the brake pads to wear out faster, also abrade the disk rotor.

the mechanic also said that the caliper is not clamping the disk rotor
equally on either side of rotor and suggested me to change the caliper.
it costs $200 each and i decided not to get it changed at this time. i
want to go to a dealer and find out if it can be covered by the
warranty. the car is less than 3 yrs old. the warranty booklet doesn't
say anything about caliper, but does mention brake pads and disk rotors
are not covered. infact i think its because of the bad caliper that i
had to replace disk rotors. any idea if a bad caliper can be replaced
under warranty.

-thanks very much
msm