GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 Impala 🢒 Preface 🢒 Cautions and Notices 🢒 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
  1. Drain the oil.
  2. Install the correct viscosity oil.

Worn crankshaft thrust bearing
    • Inspect the thrust bearing and crankshaft.
    • Repair or replace as required.

High valve lifter leak down rate

Replace the lifters as required.