Oil Pressure Check

WARNING: This page is about a different car, the 2007 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 engine oil may be hot.
Oil pressure check should be done in "Parking position" (A/T models).

Check engine oil level. Refer to "ENGINE OIL LEVEL ".
Remove undercover with power tool.
Disconnect oil pressure switch harness connector.
Disconnect harness connector at oil pressure switch (B), and remove oil pressure switch (B).
CAUTION: Do not drop or shock oil pressure switch.
- A: Oil pan (upper)
- =>: Front
  
  Fig 1: Identifying Oil Pressure Switch
Install Tools.
Tool numbers : ST25051001 (J-25695-1)

: ST25052000 (J-25695-2)

Fig 2: Identifying Oil Pressure Gauge
Start engine and warm it up to normal operating temperature.

Check oil pressure with engine running under no-load.

NOTE: When engine oil temperature is low, engine oil pressure becomes high.

Engine oil pressure [Engine oil temperature at 80°C (176°F)]

ENGINE OIL PRESSURE REFERENCE

Engine speed rpm	Approximate discharge pressure kPa (kg/cm² , psi)
Idle speed	More than 98 (1.0, 14)
2,000	More than 294 (3.0, 43)

If difference is extreme, check oil passage and oil pump for oil leaks.

After the inspections, install oil pressure switch as follows:
1. Remove old liquid gasket adhering to oil presser 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 : 14.7 N.m (1.5 kg-m, 11 ft-lb)
3. After warming up engine, make sure there is no leakage of engine oil with running engine.