Testing and Inspection for Inaccurate Oil Pressure Gauge Readings
Oil Pressure Gauge: Testing and Inspection
Gauge Reads ``0''
1.
Check oil level, add if necessary.
2.
Remove oil pressure sensor lead at sensor, gauge should read ``80.''
3.
If gauge stays at ``0'' remove sensor lead at gauge, gauge should read ``80.'' If gauge reads ``80'' find short to ground between gauge and sensor.
4.
If gauge still reads ``0'' replace cluster.
5.
With lead removed at sensor, connect a suitable ohmmeter to sensor. With engine stopped resistance should be one ohm, and approximately 44
ohms with engine running.
6.
If sensor reads one ohm with engine running, replace sensor.