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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 5.3L) >> Diagnostic Information and Procedures >> Engine Noise on Start-Up, but Only Lasting a Few Seconds

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

WARNING: This page is about a different variant/trim than selected.
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.
High valve lifter leak down rate Replace the lifters, as required.
Worn crankshaft thrust bearing
  1. Check the crankshaft end play.
  2. Inspect the thrust bearing and crankshaft.
  3. Repair or replace, as required.
Damaged or faulty oil filter bypass valve
The bypass valve is now internal to the oil filter
  1. Inspect the oil filter bypass valve for proper operation.
  2. Repair or replace, as required.
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