Suzuki Samurai/Sidekick/Tracker 1986-1998 Repair Guide

Load Sensing Proportioning Valve (LSPV)



See Figures 1 and 2

Clean, high quality brake fluid is essential to the safe and proper operation of the brake system. You should always buy the highest quality brake fluid that is available. If the brake fluid becomes contaminated, drain and flush the system, then refill the master cylinder with new fluid. Never reuse any brake fluid. Any brake fluid that is removed from the system should be discarded. Also, do not allow any brake fluid to come in contact with a painted surface; it will damage the paint.

1996-98 Sidekick, Tracker and X-90 models equipped with the Anti-Lock Brake System (ABS) require a scan tool to properly bleed the brake system. If you are servicing such a vehicle, please refer to the applicable ABS information located at the end of this information BEFORE you perform any brake procedures.

  1. Raise and safely support the vehicle.

Click image to see an enlarged view

Fig. Fig. 1: The LSPV is mounted on the right-hand rear frame rail, near the upper control arm for the rear axle assembly

Click image to see an enlarged view

Fig. Fig. 2: The LSPV must be removed with the spring and stay lever attached, then the spring and stay lever can be separated from the LSPV assembly

  1. Disconnect and plug the hydraulic brake lines from the proportioning valve assembly.

Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with the eyes and wash your hands thoroughly after handling brake fluid. If you do get brake fluid in your eyes, flush your eyes with clean, running water for 15 minutes. If eye irritation persists, or if you have taken brake fluid internally, IMMEDIATELY seek medical assistance.

  1. Remove the proportioning valve from the vehicle body.

The proportioning valve should be removed with the spring attached. Do not separate the LSPV spring and lever.

To install:
  1. Apply multi-purpose grease to the upper and lower joints of the coil spring.

Click image to see an enlarged view

Fig. Fig. 3: During installation, be sure to apply multi-purpose grease to both ends of the spring, for smooth operation

  1. Install the proportioning valve to the vehicle body, then tighten the mounting bolts to 203 inch lbs. (23 Nm).
  3. Connect the hydraulic brake lines to the proportioning valve and tighten the flare nuts to 141 inch lbs. (16 Nm).
  5. Fill the brake reservoir to the proper level and bleed the brake hydraulic system. Lower the vehicle.

Bleed the air from the proportioning valve bleeder valve.