GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 1999 🢒 SL2/SC2/SW2 🢒 Brakes 🢒 Antilock Brake System 🢒 Brake Solenoid Valve Replacement

Removal Procedure

    Object Number: 904544 Size: SH

    Important: The solenoid uses a lip seal at the lower sealing location. The lip seal is not installed in a groove and is free to slide on and off the solenoid. The lip seal may slide off the solenoid and stay in the modulator bore during solenoid removal. Make sure to remove seal from modulator bore if this occurs.

    Important: Do not attempt to disassemble the solenoid; it is serviceable only as an assembly.

  1. Clean dirt from solenoid valve and area around solenoid.
  2. Remove electrical connector from solenoid valve.
  3. Remove 2 solenoid-to-modulator TORX™ head screws and remove solenoid valve from modulator.

Installation procedure

    Important: Second design solenoid uses a lip seal at lower seal location. Be sure that seal is installed on solenoid correctly with lip or cupped side of seal facing up toward top of solenoid.

  1. Lubricate solenoid valve lip seal and/or O-rings with clean brake fluid and install on solenoid valve.
  2. Position solenoid valve into modulator. Push solenoid valve into the modulator until solenoid flange is fully seated.

    3. Important: Be sure solenoid electrical connector faces in correct direction.

  3. Install 2 solenoid to modulator TORX™ head screws.

    4. Tighten
    Tighten solenoid to modulator screws to: 5 N·m (45 lb-in)

  4. Install electrical connectors onto the solenoid valve.
  5. Fill brake fluid reservoir with clean brake fluid up to the base of the reservoir filler neck.
  6. Bleed brake system as specified.