Brake Proportioning/Combination Valve: Testing and Inspection

ON-VEHICLE INSPECTION





1. INSTALL LSPV GAUGE (SST)
SST 09709-29018
2. BLEED AIR FROM FLUID PRESSURE GAUGE





3. RAISE FRONT CALIPER PRESSURE AND CHECK REAR CALIPER PRESSURE
If the rear brake caliper pressure is incorrect, replace the P valve assembly.
4. REMOVE LSPV GAUGE (SST) AND BLEED BRAKE SYSTEM
5. CHECK FOR LEAKS