Tools Required
J-21867-850 Oil Pressure Gage Adapter
| • | With the vehicle on a level surface, allow adequate drain down time
of 2-3 minutes and measure for a low oil level. |
| | Add the recommended
grade engine oil and fill the crankcase until the oil level measures full on the
oil level indicator. |
| • | Run the engine, and verify low, or no oil pressure on the vehicle gage
or light. Listen for a noisy valve train or a knocking noise. |
| • | Inspect for the following: |
| - | Oil diluted by moisture or unburned fuel mixtures |
| - | Improper oil viscosity for the expected temperature |
| - | Incorrect or malfunctioning oil pressure sender |
| - | Incorrect or malfunctioning oil pressure gage |
| - | Malfunctioning oil bypass valve |
| • | Remove the oil pressure sender or another engine block oil gallery
plug. |
| • | Install
J-21867-850 and an oil pressure
gage and measure the engine oil pressure. |
| • | If the engine oil pressure is below specifications, inspect the engine
for one or more of the following: |
| - | Oil pump-to-engine front cover bolts loose |
| - | Oil pump screen loose, plugged, or damaged |
| - | Oil pump screen O-ring seal missing or damaged |
| - | Malfunctioning oil pump pressure regulator valve |
| - | Excessive bearing clearance |
| - | Cracked, porous or restricted oil galleries |
| - | Oil gallery plugs missing or incorrectly installed |
