Quest 1995-1996

Load Sensing Proportioning Valve

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Removal & Installation





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Fig. View of the load sensor proportioning valve


WARNING
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.


CAUTION
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. Raise and safely support the rear of the vehicle securely on jackstands.
  2.  
  3. Using a flare nut wrench, label and remove the four brake lines from the load sensor proportioning valve.
  4.  
  5. Mark the eye bracket location to ensure proper installation. Remove the two eye bracket bolts.
  6.  
  7. Remove the two load sensor proportioning valve bolts.
  8.  
  9. Remove the load sensor proportioning valve from the vehicle.

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    Fig. Using a flare nut wrench to remove the brake lines



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    Fig. Removing the eye bracket bolts



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    Fig. Removing the load sensor proportioning valve bolts

  10.  

To install:

  1. The installation is the reverse of removal, but please note the following important steps.
  2.  
  3. When installing the load sensor proportioning valve bolts, tighten them to 14 - 18 ft. lbs. (20 - 25 Nm).
  4.  
  5. When installing the eye bracket, be sure to place it in its original position, noting the marks made during removal. Tighten the bolts to 15 - 20 ft. lbs. (21 - 26 Nm).
  6.  
  7. When installing the brake line flare nuts, tighten them to 11 - 13 ft. lbs. (15 - 18 Nm).
  8.  
  9. Fill the master cylinder reservoir, as necessary, using only new DOT 3 or equivalent brake fluid.
  10.  
  11. Properly bleed the brake system. Please refer to Bleeding the Brake System for the procedure.
  12.  

 
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