Highlander 4WD V6-3.0L (1MZ-FE) (2003)
Power Steering Pump: Service and Repair
VANE PUMP ASSY
OVERHAUL
NOTICE:
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When using a vise, do not over-tighten.
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When installing, coat the parts indicated by the arrows with power steering fluid.
1. REMOVE FRONT WHEEL RH
2. DRAIN POWER STEERING FLUID
3. REMOVE FRONT FENDER LINER RH
4. REMOVE FRONT FENDER APRON SEAL RH
5. SEPARATE OIL RESERVOIR TO PUMP HOSE NO.1
a. Remove the clip and disconnect the oil reservoir to pump hose No.1.
NOTICE: Take care not to spill fluid on the V belt.
6. REMOVE POWER STEERING OIL PRESSURE SWITCH
a. Disconnect the connector.
b. Remove the oil pressure switch from the union bolt.
NOTICE: Be careful not to drop the oil pressure switch.
If the oil pressure switch is dropped or strongly damaged, replace it with a new one.
7. SEPARATE PRESSURE FEED TUBE ASSY
a. Using a spanner (22 mm) to hold the pressure port union, remove the union bolt and gasket.
8. REMOVE VANE PUMP V BELT
a. Loosen the 2 bolts and remove the vane pump V belt.
9. REMOVE VANE PUMP ASSY
a. Remove the 2 bolts and vane pump assy.
10. REMOVE POWER STEERING SUCTION PORT UNION
a. Remove the bolt and suction port union.
b. Remove the O-ring from the suction port union.