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HOMESERVICE MANUALSBUICK2006ALLURE CXSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROL SYSTEM - 3.8L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSEXHAUST GAS RECIRCULATION (EGR) INLET PIPE REPLACEMENTREMOVAL PROCEDURE
2006 Buick Allure CXS

Removal Procedure

2006 Buick Allure CXSSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
    Fig 1: Removing/Installing Right Exhaust Manifold Heat Shield & Bolts
    GM911016Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.
  2. Remove the heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor Replacement - Position 1 .
  3. Remove the exhaust manifold heat shield bolts (2).
  4. Remove the exhaust manifold heat shield.
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    6. Fig 2: Removing/Installing EGR Valve Adapter Bolt & Right Exhaust Manifold
    GM911025Courtesy of GENERAL MOTORS CORP.
  6. Remove the exhaust gas recirculation (EGR) valve inlet adapter pipe mounting bolt from the exhaust manifold.
  7. Lower the vehicle.
  8. Remove the EGR valve. Refer to Exhaust Gas Recirculation (EGR) Valve Replacement .
  9. Remove the EGR valve outlet pipe. Refer to Exhaust Gas Recirculation (EGR) Outlet Pipe Replacement .
    10. Fig 3: Removing/Installing EGR Valve Inlet Adapter Pipe
    GM911021Courtesy of GENERAL MOTORS CORP.
  10. Remove the EGR valve inlet adapter pipe bolts (2).
  11. Remove the EGR valve inlet adapter pipe (1).
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.