Steering: Service and Repair
Power Steering Pressure Test - 3.2LService Repair No - 57.90.10/01
Special Service Tools
1. Disconnect the battery ground cable.
2. Remove the air cleaner housing.
3. CAUTION: Discard fluid siphoned from the power steering system.
Siphon the fluid from the power steering reservoir.
4. Position an absorbent cloth to collect fluid spillage.
5. CAUTION: Before disconnecting or removing the components, make sure the area around the joint faces and connections are clean. Plug open connections to prevent contamination.
NOTE: Some fluid spillage is inevitable during this operation.
NOTE: Care must be taken to avoid contamination of the accessory drive belt.
Disconnect the power steering high-pressure pipe union.
6. Install the O-ring seal.
Install the special tools.
Special Service Tools: Adapter, Power Steering Pressure Test
Special Service Tools: Hose, Power Steering Pressure Test
Special Service Tools: Hose, Power Steering Pressure Test
Special Service Tools: Valve Block, Power Steering Pressure Test
Special Service Tools: Hose and Gauge, Power Steering Pressure Test
Special Service Tools: Adapter, Power Steering Pressure Test
Tie the pressure gauge aside under the hood.
7. CAUTION: Only use new fluid from a sealed container.
Refill and bleed the power steering.
8. Connect the battery ground cable.
9. NOTE: Make sure the steering components and test equipment are free from leaks.
NOTE: Maintain the maximum fluid level during the test.
NOTE: Make sure the steering is in the straight ahead position.
With the test valve open start the engine.
Turn the steering fully lock-to-lock, stop the engine.
Top-up the power steering fluid reservoir.
10. For power steering pressures, refer to the steering specification.
11. CAUTION: Do not hold steering at full lock for longer than 10 seconds.
With the engine at idle, slowly turn the steering wheel and hold on full lock.
Record the pressure reading.
12. Repeat the above procedure for the other side.
Record the pressure reading.
13. With the engine at idle, release the steering wheel. The pressure should be, at or below, the pressure specified.
14. Pressure outside this tolerance, indicates a fault.
15. CAUTION: Pump damage will occur if the test valve is closed for longer periods.
To determine if the fault is in the steering pump or the steering rack, close the test valve for a maximum of 5 seconds.
16. If the pressures recorded fall outside the given values, replace the power steering pump.
17. If the maximum pump pressure is correct, then suspect the power steering rack.
18. CAUTION: Discard fluid siphoned from the power steering system.
On completion of the test stop the engine, disconnect the battery ground cable and siphon the fluid from the power steering reservoir.
19. Disassemble the test equipment.
20. Clean the component mating faces.
Install a new O-ring seal.
Connect the high-pressure pipe union to the power steering pump.
Torque:
25 Nm
21. Install the air cleaner housing.
22. Connect the battery ground cable.
23. CAUTION: Only use new fluid from a sealed container.
Refill and bleed the power steering.