my buddy has an 88 grand marquis and the back passenger side brake locks up when i am coming to a stop. im not driving like a mad man or anything just from like 30 stopping for a stop sign. i recently put new brake pads, rotors, calipers and all on the front. anyone have an idea what could cause the back brake to lock up like that?



also the car had a surging idle. i have checkede the IAC, i also got another one from the junkyard and cleaned it upi but that didnt work either. anyone have any other ideas as to what could cause this?