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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 101 (Engine Control System - 3.8L - Introduction (2 Of 2)) >> Repair Instructions >> Exhaust Gas Recirculation (EGR) Inlet Pipe Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    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).
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