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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 >> Cylinder Leakage Test >> Tools Required

Tools Required

WARNING: This page is about a different variant/trim than selected.

J 35667-A  Cylinder Head Leakdown Tester, or equivalent

IMPORTANT: A leakage test may be performed in order to measure cylinder/combustion chamber leakage. High cylinder leakage may indicate one or more of the following conditions:
  • Worn or burnt valves
  • Broken valve springs
  • Stuck valve lifters
  • Incorrect valve lash
  • Damaged piston
  • Worn piston rings
  • Worn or scored cylinder bore
  • Damaged cylinder head gasket
  • Cracked or damaged cylinder head
  • Cracked or damaged engine block