Tundra 2WD V6-4.0L (1GR-FE) (2005)
Brake Proportioning/Combination Valve: Testing and Inspection
LOAD SENSING PROPORTIONING AND BY-PASS VALVE (LSP & BV)
ON-VEHICLE INSPECTION
1. SET REAR AXLE LOAD
Rear axle load (includes vehicle weight):
Standard cab: 950 kg (2,094 lbs.)
Access cab:
1GR-FE engine: 1,000 kg (2,205 lbs.)
2UZ-FE engine: 1,050 kg (2,315 lbs.)
2. INSTALL LSPV GAUGE (SST) AND BLEED AIR
SST 09709-29018
3. RAISE FRONT BRAKE PRESSURE TO 7,845 kPa (80 kgf/cm2, 1,138 psi) AND CHECK REAR BRAKE PRESSURE
Rear brake pressure: 5,110 ±490 kPa (52.1 ±5 kgf/cm2, 741 ±71 psi)
HINT: The brake pedal should not be depressed twice and/or returned while setting to the specified pressure. Read the value of rear brake
pressure after holding the specified fluid pressure for 2 seconds. If the brake pressure is incorrect, adjust the fluid pressure.
4. IF NECESSARY, ADJUST FLUID PRESSURE
a. Loosen the lock nut.
b. Adjust the length of shackle No.2.
Low pressure: Lengthen A