Oil Pressure Check

WARNING:

Check the engine oil level.
Remove engine undercover with power tool.
Disconnect harness connector at oil pressure switch, and remove oil pressure switch (1) using deep socket (commercial service tool).
CAUTION: Never drop or shock oil pressure switch.
- 2WD models
  
  Fig 1: Locating Oil Pressure Switch (2WD)
  Courtesy of NISSAN NORTH AMERICA, INC.
- AWD models
  
  Fig 2: Locating Oil Pressure Switch (AWD)
  Courtesy of NISSAN NORTH AMERICA, INC.
Install the oil pressure gauge [SST: ST25051001] (A) and hose [SST: ST25052000] (B).

Fig 3: Identifying Oil Pressure Gauge And Hose
Courtesy of NISSAN NORTH AMERICA, INC.
Start the engine and warm it up to normal operating temperature.
Check the engine oil pressure with engine running under no-load.
NOTE: When the engine oil temperature is low, the engine oil pressure becomes high.

Engine oil pressure: Refer to "ENGINE OIL PRESSURE ".

If difference is extreme, check engine oil passage and oil pump for engine oil leakage.
After the inspections, install oil pressure switch as follows:
1. Remove old liquid gasket from oil pressure switch and the mating surface.
2. Apply liquid gasket and tighten oil pressure switch to the specification.
  Use Genuine Liquid Gasket or equivalent.
  
  Tightening torque: Refer to "EXPLODED VIEW ".
3. After warming up engine, check there is no leakage of engine oil with running engine.