Engine Lubrication

CHECKING ENGINE OIL PRESSURE

1. Remove oil pressure sending unit and install gauge assembly C-3292A.

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

2. 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.
- Remove oil pan and inspect for debris.
- Remove oil pressure relief valve.
- Inspect oil pressure relief valve, if scored or damaged replace.
- If pressure relief valve is ok, replace oil pump assembly.

3. Run engine at 3,000 rpm, oil pressure should be 170 - 758 kPa (25 - 110 psi).
4. Remove oil pressure gauge.
5. Install oil pressure sensor.