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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. If necessary, install a NEW pressure relief valve O-ring.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Lubricate the O-ring with engine oil.

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

    3. Fig 1: View Of Pressure Relief Valve O-Ring
    GM793901Courtesy of GENERAL MOTORS CORP.
  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.
    4. 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.
  6. Install the engine front cover bolts.

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

    7. Fig 3: View Of Engine Front Cover
    GM1336120Courtesy of GENERAL MOTORS CORP.
  7. Install the upper oil pan to engine front cover bolts.

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

    8. Fig 4: View Of Upper Oil Pan Front To Front Cover Bolts
    GM738866Courtesy of GENERAL MOTORS CORP.
  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.

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

    14. Fig 5: View Of CKP Sensor & Bolt
    GM1336119Courtesy of GENERAL MOTORS CORP.
  14. Connect the CKP sensor electrical connector.
    15. 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 in Body Front End.
  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)) in Engine Cooling.
  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) in Engine Electrical.
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