Have you ever had the rotors resurfaced? If there is runout (warped) it will cause the pulsation you described. As far as the rear brake (disc / drum) the drum is for the e brake. Does it seem to be dragging? Also, I question if the ABS light has to do with the pulsation. Have you had the computer scanned to check for ABS codes? Many parts stores will do it for free.
Let me know what you find with the scan and if you had the rotors cut.
Saturday, February 21st, 2009 AT 8:05 PM