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Engine Oil Pressure: Testing and Inspection
DIAGNOSIS AND TESTING - CHECKING ENGINE OIL PRESSURE 1.
Remove oil pressure sending unit and install gauge assembly C-3292.
2.
Run engine until thermostat opens.
3.
Oil Pressure:
-
Curb Idle-25 kPa (4 psi) minimum
-
3000 rpm-170 - 758 kPa (25 - 110 psi)
4.
If oil pressure is 0 at idle, shut off engine. Check for a clogged oil pick-up screen or a pressure relief valve stuck open.