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Camshaft Cleaning and Inspection (LDK, LHU)

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Cylinder Head And Camshaft Inspection Areas
    GM2074563Courtesy of GENERAL MOTORS COMPANY
  1. Inspect the camshaft journals and lobes for wear or scoring.
  2. Inspect the camshaft sprocket alignment notch for damage.
  3. Inspect the exhaust camshaft insert (2) for damage.
  4. Inspect the camshaft cover for damage or loose oil control baffles.
    5. NOTE:

    The PCV hose should not be disconnected from the camshaft cover. The PCV hose and camshaft cover cannot be serviced individually.

  5. Inspect the PCV hose (1) attached to the camshaft cover. Replace the camshaft cover if damage to the PCV hose is present.
  6. Clean the camshaft cover.
  7. Wash the camshaft in solvent.
  8. Oil the camshaft.
  9. Inspect the camshaft cover for cracks or other signs of damage.
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