Chrysler Full-Size Vans 1989-1998 Repair Guide

Combination Valve

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4 and 5



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Fig. Fig. 1: Cutaway view of the combination valve



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Fig. Fig. 2: The brake safety switch connector is located at the top of the combination valve



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Fig. Fig. 3: The RWAL connector is located at the side of the combination valve



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Fig. Fig. 4: Use a second wrench to hold the combination valve in place when loosening brake line fittings



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Fig. Fig. 5: Always use a line wrench when loosening brake line fittings

All models incorporate the brake safety switch into either the metering valve or combination metering/proportioning valve.

  1. Raise and safely support the vehicle securely on jackstands.
  2.  
  3. On transverse mount master cylinders, remove the windshield washer reservoir for access to the valve.
  4.  
  5. Remove the splash shield, as required.
  6.  
  7. Disconnect the wiring at the warning light switch.
  8.  
  9. On anti-lock brake equipped vehicles, remove the rear anti-lock valve.
  10.  
  11. Disconnect and plug the brake lines at the combination valve.
  12.  
  13. Unbolt and remove the valve from the frame.
  14.  

To install:
  1. Install the anti-lock brake valve or combination valve and tighten the mounting nut to 65-95 inch lbs. (7-2 Nm).
  2.  
  3. Connect the brake lines and tighten fittings with a flare nut wrench to 3-16 ft. lbs. (16-23 Nm).
  4.  
  5. Refill the brake master cylinder reservoir with clean, fresh brake fluid, meeting DOT 3 or DOT 4 specifications. Properly bleed the brake system.
  6.  
  7. Install the splash shield, as required.
  8.  
  9. On transverse mount master cylinders, install the windshield washer reservoir for access to the valve.
  10.  
  11. Lower the vehicle.
  12.  

 
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