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Fluid pressure Inspection

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Set the SSTs  so that the valve of the SST  faces toward the gear housing side as shown in the figure.
    Fig 1: Installation Position Of Special Service Tool
    G00975754Courtesy of MAZDA MOTORS CORP.
  2. Disconnect the oil pump side joint of the pressure hose, connect the SSTs  set in the Step 1.
    1. Tightening torque 29.4-44.1 N.m {3.00-4.49 kgf.m, 21.6-32.5 ft.lbf} 
    Fig 2: Disconnecting Oil Pump Side Joint Of Pressure Hose & Connecting Special Tool
    G00975755Courtesy of MAZDA MOTORS CORP.
  3. Bleed the air from the system.
  4. Open the gauge valve fully.
  5. Start the engine, turn the steering wheel to the left and right to raise the power steering fluid to the appropriate temperature (50-60 °C {122-140 °F}  ).
  6. Close the gauge valve fully.
  7. Increase the engine speed to 1,000-1,500 rpm  and measure the fluid pressure generated at the oil pump.
    • If it is less than the specification, replace the oil pump as a single unit.
    Fig 3: Identifying Gauge & Completely Closed Valve
    G00975756Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Do not maintain the gauge valve fully closed for 5 s or more. It is possible that oil temperature can rise and this will negatively affect the oil pump.
    1. Oil pump fluid pressure (oil temperature 50-60 °C {122-140 °F}) 10.4-11.0 MPa {107-112 kgf/cm 2  , 1509-1595 psi} 
  8. Open the gauge valve fully and increase the engine speed to 1,000-1,500 rpm. 
  9. Turn the steering wheel fully to the left and right, then measure the fluid pressure generated at the gear housing.
    Fig 4: Identifying Gauge & Completely Open Valve
    G00975757Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Do not maintain the steering wheel fully turned for 5 s or more. It is possible that oil temperature can rise and this will negatively affect the oil pump.
    NOTE:
    • If the fluid pressure is less than the specification, it is possible that the oil pump or gear housing is not operating correctly. Replace the oil pump as a single unit.
    1. Gear housing fluid pressure (oil temperature 50-60 °C {122-140 °F}) 9.0-11.0 MPa {92-112 kgf/cm 2  , 1306-1595 psi} 
  10. After removing the SSTs,  tighten the oil pump side joint of the pressure hose to the specified torque.
    1. Tightening torque 29.4-44.1 N.m {3.00-4.49 kgf.m, 21.6-32.5 ft.lbf} 
  11. Bleed the air from the system.
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