Oil Pressure Check

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

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.

Check engine oil level. Refer to "INSPECTION ".
Remove engine under cover using power tool. Refer to "REMOVAL AND INSTALLATION ".
Disconnect the oil pressure switch (B) harness connector.
- A: Oil pan (upper)
- ← : Front
Remove the oil pressure switch (B) using suitable tool.
CAUTION: Do not drop or shock oil pressure switch.

Fig 1: Identifying Oil Pressure Switch And Oil Pan (Upper)
Courtesy of NISSAN NORTH AMERICA, INC.
Install Tools.
Tool numbers: ST25051001 (J-25695-1)

: ST25052000 (J-25695-2)

Fig 2: Identifying Oil Pressure Gauge
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. Refer to "STANDARD AND LIMIT ".
CAUTION: If the difference between the test results and the specification is extreme, check the oil passages and oil pump for leaks and blockages.
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 drain plug: Refer to "REMOVAL AND INSTALLATION ".
3. After warming up engine, ensure there are no engine oil leaks.