GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy Suburban - 4WD 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Engine Front Cover Cleaning and Inspection

    Object Number: 490689 Size: SH

    Important: 

       • Do not use the crankshaft oil seal again. Install a NEW crankshaft 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 oil seal (1) 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. Caution: Wear safety glasses in order to avoid eye damage.

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