Power Steering Pressure Switch Check
WARNING: This page is about a different car, the 2002 Mitsubishi Montero Sport. However, it is still accessible from the selected car via links, so may be relevant.
Required Special Tools:
- MB990662: Pressure Gauge
- MB9909933 or MB991217: Power Steering Oil Pressure Gauge Adapter (Pump Side)
- MB990994: Power Steering Oil Pressure Gauge Adapter (Hose Side)
- Disconnect the pressure hose from the oil pump, and then connect special tools MB990662, MB990993 or MB991217 and MB990994.
- Bleed air, and then turn the steering wheel several times while the vehicle is not moving so that the temperature of the fluid rise to approximately 50 - 60°C (122 - 140°F)
- The engine should be idling.
- Disconnect the connector for the oil pressure switch, and place an ohmmeter.
- Gradually close the shut-off valve of the pressure gauge and increase the hydraulic pressure, then check whether or not the hydraulic pressure that activates the switch is the standard value.
Standard value: 1.5 - 1.2 MPa (218 - 290 psi)
- Gradually open the shut-off valve and reduce the hydraulic pressure; then check whether or not the hydraulic pressure; that deactivates the switch is the standard value.
Standard value: 0.7 - 1.2 MPa (102 - 174 psi)
- Remove special tools MB990662, MB990993 or MB991217 and MB991549, and then tighten the pressure hose to the specified torque.
Tightening torque: 20 N.m (14 ft-lb)
- Bleed the system.