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HOMESERVICE MANUALSBUICK2006ALLURE CXSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 2 (ENGINE MECHANICAL - 3.8L)REPAIR INSTRUCTIONSON-VEHICLE REPAIR INSTRUCTIONSREPLACING ENGINE FRONT COVERINSTALLATION
2006 Buick Allure CXS

Replacing Engine Front Cover: Installation

2006 Buick Allure CXSSECTION Installation
WARNING: This page is about a different variant/trim than selected.
    Fig 1: Camshaft Position Sensor
    GM153587Courtesy of GENERAL MOTORS CORP.
  1. If replacing the engine front cover, install the camshaft position sensor to the engine front cover.
    2. NOTE: Refer to Fastener Notice in General Information.
  2. Install the camshaft position sensor bolt.

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

    3. Fig 2: Identifying Oil Pump Cover & Gear Set
    GM153600Courtesy of GENERAL MOTORS CORP.
  3. If replacing the engine front cover, install the oil pump cover and gear set to the engine front cover. Refer to Replacing Oil Pump Cover and Gear Set .
    4. Fig 3: Locating Water Pump Bolts
    GM46177Courtesy of GENERAL MOTORS CORP.
  4. If replacing the engine front cover, install the water pump.
  5. Install and tighten the water pump bolts.

    Tighten: 

    • Tighten the long water pump bolts to 34 N.m (25 Ft. Lbs.).
    • Tighten the short water pump bolts to 22 N.m (16 Ft. Lbs.).

    6. Fig 4: Removing/Installing Oil Filter Adapter & Pressure Relief Valve
    GM406042Courtesy of GENERAL MOTORS CORP.
  6. If replacing the engine front cover, install the pressure relief valve, the oil filter adapter and the oil filter adapter bolts to the engine front cover.

    Tighten: 

    1. Tighten the bolts to 15 N.m (11 Ft. Lbs.).
    2. Use the J 45059  to rotate the bolt an additional 50 degrees.

    7. Fig 5: Engine Front Cover Gasket
    GM97758Courtesy of GENERAL MOTORS CORP.
  7. Install the new engine front cover gasket. Ensure that the sealing surfaces are not damaged.
  8. Apply sealer GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the bolt threads.
    9. Fig 6: Engine Front Cover & Bolts
    GM97759Courtesy of GENERAL MOTORS CORP.
  9. Align the cogs on the crankshaft sprocket with the cogs on the oil pump gear set in the engine front cover.
  10. Install the engine front cover to the engine.
    11. Fig 7: Identifying Engine Front Cover Bolts Tightening Sequence
    GM153588Courtesy of GENERAL MOTORS CORP.
  11. Install the engine front cover bolts (1-7).

    Tighten: 

    1. Tighten the bolts to 20 N.m (15 Ft. Lbs.).
    2. Use the J 45059  to rotate the bolt an additional 40 degrees.

    12. Fig 8: Crankshaft Position Sensor
    GM97733Courtesy of GENERAL MOTORS CORP.
  12. Install the crankshaft position sensor.
  13. Install the crankshaft position sensor studs.

    Tighten:  Tighten the studs to 30 N.m (22 Ft. Lbs.).

  14. Install the oil pan-to-engine front cover bolts.

    Tighten:  Tighten the oil pan bolts to 14 N.m (125 lb in).

  15. Install the oil level sensor.

    Tighten:  Tighten the sensor to 20 N.m (15 Ft. Lbs.).

  16. Connect the oil level sensor electrical connector.
  17. Install the engine mount bracket. Refer to Replacing Engine Mount Bracket - Front .
  18. Install the water pump pulley and bolts.

    Tighten:  Tighten the bolts to 13 N.m (116 lb in).

  19. Install the radiator outlet hose to the water pump. Refer to Radiator Hose Replacement - Outlet (3.8L) in Engine Cooling.
    20. Fig 9: View Of Oil Filter
    GM153591Courtesy of GENERAL MOTORS CORP.
  20. Install the oil filter. Install the engine oil pan drain plug. Refer to Replacing Engine Oil and Oil Filter .
    21. Fig 10: Installing Crankshaft Front Oil Seal Using J 35354-A
    GM153590Courtesy of GENERAL MOTORS CORP.
  21. Install the new engine front cover seal using J 35354  . See Special Tools .
  22. Tighten the bolt until the crankshaft front oil seal is seated in the engine front cover.
  23. Remove the J 35354  . See Special Tools .
    24. Fig 11: Crankshaft Position Sensor Shield
    GM97731Courtesy of GENERAL MOTORS CORP.
  24. Install the crankshaft position sensor shield.
  25. Connect the electrical connectors to the following:
    • Oil pressure sensor
    • Crankshaft position (CKP) sensor
    • Camshaft position (CMP) sensor
  26. Install the crankshaft balancer. Refer to Replacing Crankshaft Balancer .
  27. Lower the vehicle.
    28. Fig 12: View Of Power Steering Pump And Mounting Bolts
    GM282122Courtesy of GENERAL MOTORS CORP.
  28. Install the power steering pump and the bolts.

    Tighten:  Tighten the bolts to 34 N.m (25 Ft. Lbs.).

  29. Remove the engine support fixture.
  30. Install the drive belt tensioner. Refer to Replacing Drive Belt Tensioner .
  31. Fill the cooling system. Refer to Draining and Filling Cooling System (L26 Static Fill) or Draining and Filling Cooling System (L26, LY7, GE 47716 Fill) in Engine Cooling.
  32. Fill the crankcase with engine oil. Refer to Replacing Engine Oil and Oil Filter .
  33. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (L26) in Engine Electrical.
  34. Inspect for leaks.
  35. Perform the CKP system variation learn procedure. Refer to CKP System Variation Learn Procedure in Engine Controls - 3.8L.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.