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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Engine Controls (Introduction) - 3.8L) >> Repair Instructions >> Exhaust Gas Recirculation (EGR) Inlet Pipe Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L26) or Fuel Injector Sight Shield Replacement (L32) 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. Fig 1: Exhaust Manifold Heat Shield
    GM911016Courtesy of GENERAL MOTORS CORP.
  5. Remove the exhaust manifold heat shield.
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Remove the exhaust gas recirculation (EGR) valve inlet adapter pipe mounting bolt (1) from the exhaust manifold.
  8. Fig 2: EGR Valve Inlet Adapter Pipe Mounting Bolt
    GM911025Courtesy of GENERAL MOTORS CORP.
  9. Lower the vehicle.
  10. Remove the EGR valve. Refer to Exhaust Gas Recirculation (EGR) Valve Replacement .
  11. Remove the EGR valve outlet pipe. Refer to Exhaust Gas Recirculation (EGR) Outlet Pipe Replacement .
  12. Remove the EGR valve inlet adapter pipe bolts (2).
  13. Fig 3: EGR Valve Inlet Adapter Pipe
    GM911021Courtesy of GENERAL MOTORS CORP.
  14. Remove the EGR valve inlet adapter pipe (1).