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Engine Oil Pressure: Inspection

  1. Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  2. Remove the oil pressure switch. Ref. to LUBRICATION (H4DOTC)>Oil Pressure Switch>REMOVAL .
  3. Install the oil pressure gauge to the installation area for the oil pressure switch of the chain cover.
    G10262498Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  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 the specification, check oil pump, oil filter and lubrication line. Ref. to LUBRICATION (H4DOTC)>Symptoms and causes>INSPECTION .
    • If the oil pressure warning light is ON and oil pressure is within standard, check the oil pressure system. Ref. to LUBRICATION (H4DOTC)>Oil Pressure System>INSPECTION .

    Engine oil pressure: 

    While idling (no load and select lever in "P" or "N" range)

    Standard 

    62 kPa (0.6 kg/cm2 , 9 psi) or more

    At 3, 000r/min 

    Standard 

    350 kPa (3.6 kg/cm2 , 51 psi) or more

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