Abs/TCS Modulator Gears: Removal
WARNING: This page is about a different car, the 1997 Pontiac Grand Prix, 1997 Buick Regal, and 1997 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- Remove modulator/motor pack assembly from vehicle. See ABS MODULATOR/MOTOR PACK ASSEMBLY or TCS MODULATOR/MOTOR PACK ASSEMBLY. Turn modulator/motor pack assembly upside-down. Remove 6 Torx head screws attaching gear cover to bottom of modulator. See Figure.
- Remove 4 screws attaching motor pack to modulator. See Figure. DO NOT drop motor pack. If motor pack is dropped, replacement i s necessary. DO NOT allow gears to turn during removal of gear retaining nuts. Piston in modulator can hit top of bore, damaging piston.
- Insert a drift through holes in gears (not between gear teeth) to recessed hole in modulator base. See Fig 1. Remove gear retaining nuts as necessary. Identify gear position and location for reassembly reference. Remove gears from modulator.