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Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Lubrication System >> Periodic Maintenance >> Engine Oil >> Inspection >> Oil Pressure Check

Oil Pressure Check

WARNING:
  • Be careful not to burn yourself, as the engine and engine oil may be hot.
  • Put the A/T shift selector in the Park "P" position.
  1. Check the engine oil level.
  2. Remove front under cover.
  3. Disconnect the oil pressure switch (1) harness connector.
    Fig 1: Identifying Oil Pressure Switch
    G07024914Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove the oil pressure switch.
    CAUTION: Do not drop or shock oil pressure switch.
  5. Install the oil pressure gauge [SST: ST25051001 (J25695-1)] (A) and hose [SST: ST25052000 (J25695-2)] (B).
    Fig 2: Identifying Oil Pressure Gauge
    G05224147Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Start the engine and warm it up to normal operating temperature.
  7. Check the engine oil pressure with engine running under no-load. Refer to "ENGINE OIL PRESSURE ".
    CAUTION: If the difference is extreme, check the oil passages and oil pump for leaks and blockages.
  8. After the inspections, install oil pressure switch as follows:
    1. Remove old liquid gasket adhering to oil pressure switch and engine.
    2. Apply liquid gasket and tighten oil pressure switch to the specification.

      Use Genuine RTV Silicone Sealant or equivalent. Refer to  "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".

      Oil pressure switch torque : Refer to  "EXPLODED VIEW ".

    3. After warming up engine, make sure there is no leakage of engine oil with engine running.
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