GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 Tracker - 2WD 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Load Sensing Proportioning Valve Replacement

Removal Procedure

Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.


    Object Number: 470267 Size: SH
  1. Clean around the reservoir cap (1) and remove the fluid with a syringe.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 470118 Size: SH
  3. Disconnect the brake pipes (3,4) from the Load Sensing Proportioning Valve (LSPV) (1).

    4. Object Number: 470119 Size: SH
  4. Remove the 2 bolts (8) in order to separate the LSPV from the frame.
  5. Remove the one bolt (5) in order to remove the LSPV (9), the LSPV spring (6), and the LSPV stay (4), from the vehicle.
  6. Remove the LSPV spring (6) and the LSPV stay (4) from the lever (7).

Installation Procedure

    Object Number: 172076 Size: SH
  1. Apply multi-purpose grease to the upper pivot point (1) and the lower pivot point (2) of the spring.

    2. Object Number: 470119 Size: SH
  2. Install the LSPV spring (6) and the LSPV stay (4) to the lever (7) of the LSPV assembly.
  3. Install the LSPV assembly to the vehicle body.

    4. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the LSPV assembly bolts (8).

    5. Tighten
    Tighten the bolts to 23 N·m (17.0 lb ft).

  5. Install the LSPV stay bolt (5).

    6. Tighten
    Tighten the bolt to 23 N·m (17.0 lb ft).


    Object Number: 470118 Size: SH
  6. Install the brake pipes to the LSPV.

    7. Tighten

        • Tighten the brake pipe flare nuts (3,4) to 16 N·m (11.5 lb ft).
        • Tighten the bleeder plug to 7.5 N·m (66.4 lb in).
  7. Lower the vehicle.
  8. Fill the brake fluid reservoir. Refer to Master Cylinder Reservoir Filling .
  9. Bleed the air from the hydraulic brake system. Refer to Hydraulic Brake System Bleeding .
  10. Place the vehicle on a level floor.
  11. Verify the vehicle trim height is correct. Refer to Trim Height Inspection and to Trim Height Specifications in Suspension General Diagnosis.

    12. Object Number: 470120 Size: SH
  12. Push up the LSPV lever (1) with your finger until the lever stops. Measure the length of the coil spring (2).

    13. Measurement
    The coil spring should measure 103 mm (4.06 in) between the spring ends.


    Object Number: 470119 Size: SH
  13. If necessary, adjust the spring by changing the position of the stay (4).

    14. Tighten
    Tighten the stay bolt to 23 N·m (17.0 lb ft).

  14. Inspect the LSPV body and the brake pipe joints. Verify that these components are free from fluid leakage.