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Engine Noise on Start-Up, but Only Lasting a Few Seconds

Engine Noise on Start-Up, but Only Lasting a Few Seconds


Cause Correction
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.