GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Engine 🢒 Engine Mechanical - 6.6L 🢒 Engine Front Cover Installation

    Object Number: 793901 Size: SH
  1. Install the relief valve O-ring to the engine front cover.
  2. Lubricate the O-ring with engine oil.

    3. Object Number: 663817 Size: SH
  3. Apply a 2-3 mm wide and 0.5-1.5 mm high bead of GM P/N 12378521 (Canadian P/N 88901148) sealant to the mating surfaces of the engine front cover.

    4. Object Number: 1336120 Size: SH
  4. Install the engine front cover.

    5. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the engine front cover bolts and tighten to 25 N·m (18 lb ft).

    6. Object Number: 1336119 Size: SH
  6. Install a new O-ring to the crankshaft position sensor spacer.
  7. Lubricate the O-ring with engine oil.
  8. Install the crankshaft position sensor spacer.
  9. Install the crankshaft position sensor spacer bolts. Tighten the crankshaft position sensor spacer bolts to 10 N·m (89 lb in).
  10. Install a new O-ring to the crankshaft position sensor.
  11. Lubricate the O-ring with engine oil.
  12. Install the crankshaft position sensor.
  13. Install the crankshaft position sensor bolt. Tighten the crankshaft position sensor bolt to 10 N·m (89 lb in).