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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1667 (Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L - Repair Instructions - On Vehicle) >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Do not reuse the crankshaft oil seal or front cover gasket.
  • Do not apply any type of sealant to the front cover gasket, unless specified.
  • The special tool in this procedure is used to properly center the front crankshaft front oil seal.
    • All gasket surfaces should be free of oil or other foreign material during assembly.
    • The crankshaft front oil seal MUST be centered in relation to the crankshaft.
    • An improperly aligned front cover may cause premature front oil seal wear and/or engine oil leaks.
    Fig 1: View Of CMP Actuator Magnet, Bolts, Gasket & Oil Seal
    GM1658168Courtesy of GENERAL MOTORS CORP.
  1. If replacing the front cover perform the following steps, otherwise proceed to step 10.
  2. Install a NEW CMP actuator magnet gasket (753) onto the magnet.
    3. CAUTION: Refer to Fastener Caution .
  3. Install the CMP actuator magnet (752) and bolts (751).

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

    4. Fig 2: View Of CMP Sensor & O-Ring
    GM1658166Courtesy of GENERAL MOTORS CORP.
  4. Inspect the CMP sensor O-ring seal for cuts or damage. If the seal is not cut or damaged, it may be reused.
  5. Lubricate the O-ring seal (704) with clean engine oil.
  6. Install the CMP sensor (703).
    7. Fig 3: View Of CMP Sensor Wire Harness & Bolts
    GM1658163Courtesy of GENERAL MOTORS CORP.
  7. Position the CMP sensor wire harness (737) to the front cover
  8. Connect the CMP sensor wire harness to the CMP sensor.
  9. Install the CMP sensor wire harness bolts (738).

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

    10. Fig 4: View Of Front Cover, Bolts & Gasket
    GM1658162Courtesy of GENERAL MOTORS CORP.
  10. Apply a 5 mm (0.20 in) bead of sealant, 20 mm (0.80 in) long to the oil pan to engine block junction. Refer to Adhesives, Fluids, Lubricants, and Sealers .
  11. Position the NEW engine front cover gasket (503) and front cover (502) to the engine.
  12. Install the front cover bolts (501) until snug. Do not overtighten.
    13. Fig 5: View Of Oil Pan-To-Front Cover Bolts
    GM832976Courtesy of GENERAL MOTORS CORP.
  13. Install the oil pan-to-front cover bolts (1) until snug. Do not over tighten.
    14. Fig 6: View of J 41476 Installed To Front Cover
    GM451712Courtesy of GENERAL MOTORS CORP.
  14. Install J 41476  to the front cover. See Special Tools .
  15. Align the tapered legs of the J 41476  with the machined alignment surfaces on the front cover. See Special Tools .
  16. Install the crankshaft balancer bolt until snug. Do not overtighten.

    Tighten: 

    1. Tighten the oil pan to front cover bolts to 25 N.m (18 lb ft).
    2. Tighten the engine front cover bolts to 25 N.m (18 lb ft).

  17. Remove the J 41476  . See Special Tools .
    18. Fig 7: View Of Electrical Connector, Cable Channel Bolt & Pin
    GM1697734Courtesy of GENERAL MOTORS CORP.
  18. Connect the engine harness electrical connector (1) to the CMP sensor wire harness electrical connector.
  19. Install a NEW crankshaft front oil seal. Refer to Crankshaft Front Oil Seal Replacement (With LY6) .
  20. Install the water pump. Refer to Water Pump Replacement (LMM) or Water Pump Replacement (V8) .
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