Engine Noise on Start-Up, but Only Lasting a Few Seconds. GMC Truck Savana 2002

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2002 🢒 Savana 🢒 Engine 🢒 Engine Controls - 5.0L and 5.7L 🢒 Engine Noise on Start-Up, but Only Lasting a Few Seconds

Cause

Correction

Incorrect engine oil - viscosity

Install the correct engine oil and oil filter. Refer to Engine Oil and Oil Filter Replacement .

Incorrect oil filter - without anti-drainback feature

Install the correct engine oil and oil filter. Refer to Engine Oil and Oil Filter Replacement .

Worn, damaged or improperly installed oil filter by-pass valve

•	Inspect the oil filter by-pass valve.

•	Repair or replace damaged components as required.

High valve lifter leak down rate

•	Inspect the valve lifters.

•	Repair or replace damaged components as required.

Worn, damaged or improperly installed crankshaft thrust bearing

•	Inspect the crankshaft.

•	Inspect the crankshaft thrust bearing.

•	Repair or replace damaged components as required.