| Incorrect oil filter without anti-drainback feature |
Install the correct oil filter. |
| Incorrect oil viscosity |
Drain the engine oil and replace with the correct viscosity oil. |
| High stationary hydraulic lash adjuster (SHLA), valve lifter, leak down rate |
Replace the SHLAs, valve lifters, as required. |
| Worn crankshaft thrust bearing |
- Inspect the thrust bearing and crankshaft.
- Repair or replace as required.
|
| Damaged or faulty oil filter by-pass valve |
- Inspect the oil filter by-pass valve for proper operation.
- Repair or replace as required.
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