Oil Pressure Check

WARNING: This page is about a different car, the 2003 Nissan Murano. 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.
Put the selector lever in the Park P position.

Check oil level. Refer to INSPECTION .
Remove splash guard (RH).
Disconnect oil pressure switch harness connector.
Remove oil pressure switch.

Fig 1: Removing Oil Pressure Switch
Courtesy of NISSAN MOTOR CO., U.S.A.
Install pressure gauge.
Start engine and warm it up to normal operating temperature.
Check oil pressure with engine running under no-load.

Fig 2: Engine Running Speed Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Identifying Pressure Gauge
Courtesy of NISSAN MOTOR CO., U.S.A.

If difference is extreme, check oil passage and oil pump for oil leaks.
After the inspections, install the oil pressure switch as follows:
1. Remove the old liquid gasket adhering to switch and engine.
2. Apply liquid gasket and tighten the oil pressure switch to specification.
Use Genuine Thread Sealant or equivalent.
1. : 12.3 - 17.2 N.m (1.25 - 1.75 kg-m, 9 - 12 ft-lb)