Engine Lubrication: Testing and Inspection

DIAGNOSIS AND TESTING - ENGINE OIL PRESSURE
1. Disconnect and remove oil pressure switch.
2. Install Special Tools C-3292 Gauge with 8406 Adaptor fitting.
3. Start engine and record oil pressure. Refer to Specifications for correct oil pressure requirements.

CAUTION: If oil pressure is 0 at idle, do not perform the 3000 RPM test

4. If oil pressure is 0 at idle. Shut off engine, check for pressure relief valve stuck open, a clogged oil pick-up screen or a damaged oil pick-up tube O-ring.
5. After test is complete, remove test gauge and fitting.
6. Install oil pressure switch and connector.