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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Mechanical - 6.6L - Off Vehicle Repair Instructions (2 Of 3)) >> Off-Vehicle Repair Instructions (Part 2) >> Engine Front Cover Installation

Engine Front Cover Installation

WARNING: This page is about a different variant/trim than selected.
  1. Install the relief valve O-ring to the engine front cover.
    Fig 1: View Of Pressure Relief Valve O-Ring
    GM793901Courtesy of GENERAL MOTORS CORP.
  2. Lubricate the O-ring with engine oil.
  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.
    Fig 2: Determining Sealant Bead Dimensions
    GM663817Courtesy of GENERAL MOTORS CORP.
  4. Install the engine front cover.
    Fig 3: View Of Engine Front Cover
    GM1336120Courtesy of GENERAL MOTORS CORP.
    5. NOTE: Refer to FASTENER NOTICE .
  5. Install the engine front cover bolts.

    Tighten:  Tighten the engine front cover bolts to 25 N.m (18 lb ft).

  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:  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.
    Fig 4: View Of CKP Sensor & Bolt
    GM1336119Courtesy of GENERAL MOTORS CORP.
  13. Install the crankshaft position sensor bolt.

    Tighten:  Tighten the crankshaft position sensor bolt to 10 N.m (89 lb in).

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