LR3/Disco 3
15 . Repeat the above procedure for the other side.
16 . With the engine at idle, release the steering wheel. The pressure should be, at or below, the pressure specified.
17 . To determine if the fault is in the steering pump or the steering rack, close the test valve for a maximum of 5
seconds.
18 . If the pressures recorded fall outside the given values, replace the power steering pump.
19 . If the maximum pump pressure is correct, then suspect the power steering rack.
20 . On completion of the test stop the engine, disconnect the battery ground cable and siphon the steering fluid from the
reservoir.
21 . Disassemble the test equipment.
22 . Connect the high-pressure line to the power steering pump.
23 . Install the front LH splash shield.
24 . Install the radiator access panel.
25 . Connect the battery ground cable.
26 . Refill and bleed the power steering.
Power Steering System Filling and Bleeding
Record the pressure reading.
Pressure outside this tolerance, indicates a fault.
Remove the filler cap.
Install the filler cap.
Clean the component mating faces.
Install the new O-ring seals.
Tighten the bolt to 25 Nm (18 lb.ft).
Secure with the clips.
Tighten the M6 bolts to 10 Nm (7 lb.ft).
Tighten the M10 bolts to 45 Nm (33 lb.ft).
