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Engine Oil Pressure: Inspection

  1. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G07911451Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the oil pressure switch. Refer to REMOVAL
  3. Install the oil pressure gauge to cylinder block.
    Fig 2: Checking Oil Pressure Using Pressure Gauge
    G04997588Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the battery ground terminal.
    Fig 3: Connecting Battery Ground Cable
    G07911453Courtesy of SUBARU OF AMERICA, INC.
  5. Start the engine, and check the oil pressure.
    NOTE:
    • Standard value is based on an engine oil temperature of 80°C (176°F).
    • If the oil pressure is out of specification, check oil pump, oil filter and lubrication line. Refer to INSPECTION
    • If the oil pressure warning light is ON and oil pressure is within specification, check the oil pressure switch. Refer to INSPECTION

    Engine oil pressure: 

    Standard 

    98 kPa (1.0 kgf/cm 2  , 14 psi) or more (at 600 rpm) 

    294 kPa (3.0 kgf/cm 2  , 43 psi) or more (at 5, 00 rpm) 

  6. After inspection, install the related parts in the reverse order of removal.
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