Engine Oil Pressure Test

1. Special Tools Required Oil pressure gauge attachment 07406-0030000 Oil pressure gauge 07506-3000001 If the low oil pressure indicator stays on with the engine running, check the engine oil level. If the oil level is correct: Remove the engine oil pressure switch, and install the special tools. Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem before continuing. Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should be:
   Engine Oil Temperature: | 80 °C (176 °F)
   Engine Oil Pressure: |
   At 820 rpm (min −1 ): | 110 kPa (1.1 kgf/cm 2 , 16 psi) min.
   At 3,000 rpm (min −1 ): | 410 kPa (4.2 kgf/cm 2 , 59 psi) min.
If the oil pressure is not within specifications, check the oil pump. |