Engine Oil Pressure: Testing and Inspection

Engine Oil Pressure Test

NOTE: If the oil pressure warning light stays on with the engine running, check the engine oil level. If the oil level is correct:

1. Remove the engine oil pressure switch, and install an oil pressure gauge (A).

2. Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem before continuing.

3. Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should be:









4. If the oil pressure is out of specifications, inspect these items:
- Replace the oil filter. Service and Repair

- Inspect the oil pressure relief valve. Overhaul

- Check the oil screen for clogging.

- Check the oil pump. Overhaul