GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L 🢒 Engine Front Cover Cleaning and Inspection

Engine Front Cover Cleaning and Inspection RPO LY6/L76/L9H


    Object Number: 1658228 Size: SH

    Note: 

       • Do not use the crankshaft front oil seal again. Install a NEW crankshaft front oil seal during assembly.
       • Do not use the front cover-to-engine block gasket again. Install a NEW gasket during assembly.
       • Do not use the camshaft position (CMP) actuator magnet gasket again. Install a NEW gasket during assembly.

  1. Clean the cover in solvent. Remove the sealant from the cover oil pan surface. Refer to Replacing Engine Gaskets.

    2. Warning: Refer to Safety Glasses and Compressed Air Warning in the Preface section.

  2. Dry the cover with compressed air.
  3. Inspect the gasket sealing surfaces (1, 4) for excessive scratches or gouging.
  4. Inspect the threaded bolt holes (2, 3) for damaged threads or debris.

Engine Front Cover Cleaning and Inspection RPO LY2/LH6/LMG/LY5/LC9


    Object Number: 1704625 Size: SH

    Note: 

       • Do not use the crankshaft front oil seal again. Install a NEW crankshaft front oil seal during assembly.
       • Do not use the front cover-to-engine block gasket again. Install a NEW gasket during assembly.

  1. Remove the crankshaft front oil seal (140) from the front cover.
  2. Clean the cover in solvent. Remove the sealant from the cover oil pan surface. Refer to Replacing Engine Gaskets.

    3. Warning: Refer to Safety Glasses and Compressed Air Warning in the Preface section.

  3. Dry the cover with compressed air.
  4. Inspect the gasket sealing surfaces for excessive scratches or gouging.
  5. Inspect the threaded bolt holes for damaged threads or debris.
  6. Inspect the crankshaft oil seal and camshaft position (CMP) sensor mounting bore for damage.