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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 541 (POWER STEERING SYSTEM)POWER STEERING FLUID INSPECTIONFLUID PRESSURE INSPECTION
2010 Mazda 5 Sport, 2.3 L, Standard

Fluid Pressure Inspection

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Fluid Pressure Inspection
WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Assemble the SSTs  as shown in the Fig 1 .
    Fig 1: Assembling SST
    G01930621Courtesy of MAZDA MOTORS CORP.
  2. Disconnect the pressure pipe from the oil pump, and connect the SSTs  .

    Tightening torque 

    1. 29.4-44.1 N.m {3.0-4.4 kgf.m, 22-32 ft.lbf} 
    Fig 2: Disconnecting Pressure Pipe From Oil Pump
    G01930622Courtesy of MAZDA MOTORS CORP.
  3. Bleed the air from the system. (See AIR BLEEDING  .)
  4. Open the gauge valve fully.
  5. Start the engine and turn the steering wheel fully left and right to raise the fluid temperature to 50-60 °C {122-140 °F}  .
  6. Close the gauge valve completely.
  7. Increase the engine speed to 1,000-1,500 rpm  and measure the fluid pressure generated by the oil pump.
    • If the pressure is not within the specification, repair or replace the oil pump component.
    CAUTION:
    • If the valve is left closed for more than 5 seconds, the fluid temperature will rise excessively and adversely affect the oil pump.

    Oil pump fluid pressure 

    1. L3: 10.80-11.29 MPa {110.2-115.2 kgf/cm 2  , 1567-1637 psi} 
    2. AJ: 11.31-11.80 MPa {115.4-120.3 kgf/cm 2  , 1640-1711 psi} 
    Fig 3: Checking Oil Pump Fluid Pressure - SST Valve Closed
    G01930623Courtesy of MAZDA MOTORS CORP.
  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.
    • If the pressure is not within the specification, repair or replace the steering gear component.
    CAUTION:
    • If the steering wheel is kept in the fully turned position for more than 5 seconds, the fluid temperature will rise excessively and adversely affect the oil pump.

    Gear housing fluid pressure 

    1. L3: 10.80-11.29 MPa {110.2-115.2 kgf/cm 2  , 1567-1637 psi} 
    2. AJ: 11.31-11.80 MPa {115.4-120.3 kgf/cm 2  , 1640-1711 psi} 
    Fig 4: Checking Oil Pump Fluid Pressure - SST Valve Open
    G01930624Courtesy of MAZDA MOTORS CORP.
  10. Remove the SSTs  . Install and tighten the pressure pipe to the specified torque.

    Tightening torque 

    1. 29.4-44.1 N.m {3.0-4.4 kgf.m, 22-32 ft.lbf} 
  11. Bleed the air from the system.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.