Engine Oil Pressure: Testing and Inspection

Engine Oil Pressure Test

Removal

1. Oil Pressure Switch





1. Remove the oil pressure switch (A).

2. Remove any old liquid gasket from the switch mounting hole.

Test

If the low oil pressure indicator stays on with the engine running, check the engine oil level. If the oil level is correct:

1. Engine Oil Pressure - Test

1. Install the 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 not within specifications, inspect these items:

* Blocking of oil filter.
* Blocking of oil strainer.
* Inspect the oil pressure relief valve.
* Inspect the oil pump.

5. Remove the oil pressure gauge.

Installation

1. Oil Pressure Switch





1. Apply liquid gasket (P/N 08718-0004 or 08718-0009) to the oil pressure switch threads. Install the component within 5 minutes of applying the liquid gasket.

NOTE:
* Using too much liquid gasket may cause liquid gasket to enter the oil passage or the end of the oil pressure switch.
* If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.

2. Install the oil pressure switch (A).