Toyota RAV4 manuals

Toyota Sienna Service Manual: Inspection

1. INSPECT VANE PUMP SHAFT AND BUSHING IN VANE PUMP FRONT HOUSING

 INSPECT VANE PUMP SHAFT AND BUSHING IN VANE PUMP FRONT HOUSING

(a) Using a micrometer, measure the outer diameter [a] of the vane pump shaft with pulley.

(b) Using vernier calipers, measure the inner diameter [b] of the vane pump front housing bushing.

(c) Calculate the oil clearance.

Oil clearance = Inner diameter of the bushing [b] - Outer diameter of the shaft [a]

Maximum oil clearance: 0.07 mm (0.0028 in.)

If the oil clearance exceeds the maximum, replace the vane pump assembly.

2. INSPECT VANE PUMP ROTOR AND VANE PUMP PLATE CLEARANCE

INSPECT VANE PUMP ROTOR AND VANE PUMP PLATE CLEARANCE

(a) Using a micrometer, measure the thickness of the vane pump plates.

Standard thickness: 1.405 to 1.411 mm (0.05531 to 0.05555 in.) If the thickness is not within the specified range, replace the vane pump assembly.

INSPECT VANE PUMP ROTOR AND VANE PUMP PLATE CLEARANCE

(b) Using a feeler gauge, measure the clearance between the side face of the vane pump rotor groove and the vane pump plates.

Maximum clearance: 0.03 mm (0.0012 in.) If the clearance exceeds the maximum, replace the vane pump assembly.

3. INSPECT FLOW CONTROL VALVE ASSEMBLY

INSPECT FLOW CONTROL VALVE ASSEMBLY

(a) Coat the flow control valve assembly with power steering fluid and check that it falls smoothly into the flow control valve due to its own weight.

If the control valve does not fall into the hole smoothly, replace the vane pump assembly.

INSPECT FLOW CONTROL VALVE ASSEMBLY

(b) Check the flow control valve assembly for leaks.

Close one of the holes and apply compressed air, 392 to 490 kPa (4 to 5 kgf/cm2, 57 to 71 psi), into the opposite side hole, and confirm that air does not come out from the holes in the ends of the flow control valve assembly.

If air leaks, replace the vane pump assembly.

4. INSPECT FLOW CONTROL VALVE COMPRESSION SPRING

INSPECT FLOW CONTROL VALVE COMPRESSION SPRING

(a) Using vernier calipers, measure the free length of the flow control valve compression spring.

Minimum free length: 29.2 mm (1.150 in.) If the length is less than the minimum, replace the vane pump assembly

5. INSPECT PRESSURE PORT UNION

If the union seat in the pressure port union is severely damaged, replace the vane pump assembly.

6. INSPECT TOTAL PRELOAD

 INSPECT TOTAL PRELOAD

(a) Check that the pump rotates smoothly without abnormal noise.

(b) Temporarily install the service bolt.

Recommended service bolt: Thread diameter: 10 mm (0.39 in.) Thread pitch: 1.25 mm (0.0492 in.) Bolt length: 50 mm (1.97 in.)

(c) Using a torque wrench, check the pump rotating torque.

Rotating torque: 0.27 N*m (2.8 kgf*cm, 2.4 in.*lbf) or less

If the rotating torque is not as specified, check the vane pump housing oil seal.

Disassembly
1. HOLD VANE PUMP ASSEMBLY (a) Using SST, hold the vane pump assembly in a vise. SST 09630-00014 (09631-00132) 2. REMOVE POWER STEERING SUCTION PORT UNION (a) Remove the bolt and the pow ...

Reassembly
NOTICE: Before installation, coat the parts indicated by arrows with power steering fluid (See page PS-7). 1. INSTALL VANE PUMP HOUSING OIL SEAL (a) Coat a new vane pump housing oil seal lip with ...

Other materials:

System description
1. SYSTEM DESCRIPTION (a) ABS (Anti-lock Brake System) The ABS helps prevent wheels from locking when the brake is applied firmly or when braking on a slippery surface. (b) EBD (Electronic Brake force Distribution) The EBD control utilizes ABS, realizing proper brake force distribution betw ...

Diagnosis system
1. CHECK DLC3  The ECU uses the ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not opera ...

Data list / active test
1. DATA LIST HINT: Using the DATA LIST displayed on the intelligent tester, you can read the value of the switch, sensor, actuator, etc. without parts removal. Reading the DATA LIST as the first step of troubleshooting is one way to shorten the labor time.  Connect the intelligent tes ...

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