GM Service Manual Online
For 1990-2009 cars only

Brake Pressure Modulator Valve Bracket Replacement Without RPO LAT

Removal Procedure

  1. Place the ignition switch in the OFF position.
  2. Remove the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement.
  3. Without draining the coolant or removing the hoses, remove and position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement.

  4. Object Number: 1873930  Size: SH
  5. Remove the brake pressure modulator valve (BPMV) bolt (1).

  6. Object Number: 1873931  Size: SH
  7. Without disconnecting the brake pipe fittings, carefully lift the BPMV assembly (1) upward to release the mounting pins from the BPMV bracket insulators.
  8. Do not pry on the accumulator caps on the underside of the BPMV.

  9. Position the BPMV assembly aside and secure with heavy mechanics wire or equivalent.

  10. Object Number: 1873934  Size: SH
  11. Remove the 2 BPMV bracket bolts (1).

  12. Object Number: 1873935  Size: SH
  13. Remove the BPMV bracket nut (1) and the BPMV bracket.
  14. Inspect the insulators for damage and replace, if necessary.

Installation Procedure


    Object Number: 1873935  Size: SH
  1. Install the BPMV bracket.
  2. Loosely install the BPMV bracket nut (1).
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1873934  Size: SH
  4. Install the 2 BPMV bracket bolts (1).
  5. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  6. Tighten the BPMV bracket nut.
  7. Tighten
    Tighten the nut to 10 N·m (89 lb in).


    Object Number: 1873931  Size: SH
  8. Carefully position the BPMV assembly (1) to the BPMV bracket insulators.

  9. Object Number: 1873930  Size: SH
  10. Install the BPMV bolt (1).
  11. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  12. Install the radiator surge tank. Refer to Radiator Surge Tank Replacement.
  13. Install the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement.

Brake Pressure Modulator Valve Bracket Replacement With RPO LAT

Removal Procedure

  1. Place the ignition switch in the OFF position.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  3. Object Number: 1873934  Size: SH
  4. Remove the 2 brake pressure modulator valve (BPMV) bracket bolts (1).

  5. Object Number: 1873930  Size: SH
  6. Remove the BPMV bolt (1).

  7. Object Number: 1873931  Size: SH
  8. Without disconnecting the brake pipe fittings, carefully lift the BPMV assembly (1) upward to release the mounting pins from the BPMV bracket insulators.
  9. Do not pry on the accumulator caps on the underside of the BPMV.

  10. Position the BPMV assembly aside and secure with heavy mechanics wire or equivalent.
  11. Inspect the insulators for damage and replace, if necessary.

Installation Procedure


    Object Number: 1873931  Size: SH
  1. Install the BPMV (1) to the bracket.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1873930  Size: SH
  3. Install the BPMV bolt (1).
  4. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1873934  Size: SH
  5. Install the 2 BPMV bracket bolts (1).
  6. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  7. Lower the vehicle.