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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Mechanical - 6.6L - On Vehicle Repair Instructions) >> On-Vehicle Repair Instructions >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. If necessary, install a NEW pressure relief valve O-ring.
    Fig 1: View Of Pressure Relief Valve O-Ring
    GM793901Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  2. Lubricate the O-ring with engine oil.

    Tighten:  Tighten the valve to 39 N.m (29 lb ft).

  3. Apply a 2-3 mm (1/8 in) wide by 0.5-1.5 mm (1/16 in) high, bead of sealant GM P/N 97720043 (Canadian P/N 88901148), or equivalent to the engine front cover sealing surface to the engine block.
    Fig 2: Determining Sealant Bead Dimensions
    GM663817Courtesy of GENERAL MOTORS CORP.
  4. Apply a 2-3 mm (1/8 in) wide by 0.5-1.5 mm (1/16 in) high, bead of sealant GM P/N 97720043 (Canadian P/N 88901148), or equivalent to the engine front cover sealing surface to the upper oil pan.
  5. Install the engine front cover.
    Fig 3: View Of Engine Front Cover
    GM1336120Courtesy of GENERAL MOTORS CORP.
  6. Install the engine front cover bolts.

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

  7. Install the upper oil pan to engine front cover bolts.
    Fig 4: View Of Upper Oil Pan To Engine Front Cover Bolts
    GM738866Courtesy of GENERAL MOTORS CORP.

    Tighten:  Tighten the bolts to 21 N.m (15 lb ft).

  8. Install a NEW O-ring to the CKP sensor spacer.
  9. Lubricate the O-ring with clean engine oil.
    IMPORTANT: The crankshaft position sensor spacers are machined with different timing positions. However, if the crankshaft position sensor spacer requires replacement, replace with a grade "C" spacer.
  10. Install the CKP sensor spacer and bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  11. Install a NEW O-ring to the CKP sensor.
  12. Lubricate the O-ring with clean engine oil.
  13. Install the CKP sensor and bolt.
    Fig 5: View Of CKP Sensor & Bolt
    GM1336119Courtesy of GENERAL MOTORS CORP.

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

  14. Connect the CKP sensor electrical connector.
    Fig 6: View Of Crankshaft Position Sensor Electrical Connector
    GM1335470Courtesy of GENERAL MOTORS CORP.
  15. Install the right wheelhouse panel. Refer to Wheelhouse Panel Replacement .
  16. Install the crankshaft front oil seal. Refer to Crankshaft Front Oil Seal Replacement .
  17. Install the water pump. Refer to Water Pump Replacement (6.6L (LLY)) .
  18. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) .
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