Volvo S90/1998- Car has had several brake changes - bought 02 at 27,000 miles; 4/03 rear rotors & front/back pad; 3/04 rear brakes;9/04 front rotor & front & rear brakes;4/05 machine front \rear brakes;6/06 machine front ; front brakes. Since June car squeaks on occassional braking, & recently started shimming with break application. Should the rotors ever be machined? Estimate is for both front & rear rotors along with complete pads. Who to have do work? 1st 3 times Volvo dealer, next 2 private & last was Midas. Any help would be appreciated.
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1998 Volvo s90