GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Engine Rear Cover Cleaning and Inspection

    Object Number: 1272844 Size: SH

    Important: 

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

  1. Remove the crankshaft oil seal (141) from the rear housing.
  2. Clean the housing in solvent. Remove the sealant from the housing oil pan surface. Refer to Replacing Engine Gaskets .

    3. Caution: Refer to Safety Glasses Caution in the Preface section.

  3. Dry the housing with compressed air.
  4. Inspect the gasket sealing surfaces for excessive scratches or gouging.
  5. Inspect the housing-to-oil pan threaded bolt holes for damaged threads or debris.
  6. Inspect the crankshaft oil seal mounting bore for damage.