Tools Required
• | J 36648-A
(KM 135) Oil Pressure Gage Adapter |
- With the vehicle on a level surface, run the vehicle for a few minutes, allow adequate drain down time, 2-3 minutes, and measure for a low oil level.
- Add the recommended grade engine oil and fill the crankcase until oil level measures full on the oil level indicator, if required.
- Run the engine briefly, 10-15 seconds, 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 conditions:
• | Oil diluted by the following items: |
• | Malfunctioning oil filter bypass valve |
• | Incorrect or faulty oil pressure gage |
• | Incorrect or faulty oil pressure gage sensor |
• | Improper engine oil viscosity for the expected temperature |
- Remove the oil pressure gage sensor.
- Install the
J 36648-A
(1) in place of the oil pressure sensor.
- Connect the
J 21867
(2) to the
J 36648-A
.
- Start the engine and check oil pressure at idle speed and engine temperature at 176°C (80°F).
- Measure the engine oil pressure. The minimum oil pressure should be 30 kPa (8.88 psi).
- If the engine oil pressure is below specifications, inspect the engine for one or more of the following conditions:
• | Loose oil filter adapter bolts |
• | Missing or damaged oil filter adapter O-ring seal or seals |
• | Loose oil pump-to-engine block bolts |
• | Loose, plugged or damaged oil pump screen |
• | Missing or damaged oil pump screen O-ring seal |
• | Damage or leak in the oil pump screen suction tube |
• | Malfunctioning oil pump pressure regulator valve |
• | Missing or incorrectly installed oil gallery plugs |
• | Loose camshaft intermediate drive shaft bolts |
• | Excessive bearing clearance for the following items: |
- | Camshaft intermediate drive shaft sprocket |
• | Cracked, porous or restricted oil galleries |
- Repair or replace components as necessary.