Commander 4WD V8-4.7L VIN N (2006)
Engine Oil Pressure: Testing and Inspection
ENGINE OIL PRESSURE
1. Remove oil pressure sending unit and install gauge assembly C-3292.
2. Run engine until thermostat opens.
3. Oil Pressure:
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Curb Idle-25 kPa (4 psi) minimum
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3000 rpm-170 - 550 kPa (25 - 80 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.
