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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 87 (Engine Mechanical - 3.8L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Exhaust Gas Recirculation (EGR) and EGR Pipe Removal

Exhaust Gas Recirculation (EGR) and EGR Pipe Removal

WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Heated Oxygen Sensor Lead
    GM395584Courtesy of GENERAL MOTORS CORP.
  1. Remove the heated oxygen sensor lead.
    2. Fig 2: Upper Right Exhaust Manifold Heat Shield
    GM97750Courtesy of GENERAL MOTORS CORP.
  2. Remove the upper right exhaust manifold heat shield.
    3. Fig 3: Lower Right Exhaust Manifold Heat Shield
    GM97747Courtesy of GENERAL MOTORS CORP.
  3. Remove the lower right exhaust manifold heat shield.
    4. Fig 4: View Of EGR Valve Adapter Assembly
    GM36667Courtesy of GENERAL MOTORS CORP.
  4. Remove the EGR valve nuts, EGR valve and gasket.
  5. Remove the EGR valve adapter inlet pipe bolt from the RH exhaust manifold.
  6. Remove the EGR valve outlet pipe bolt, nut and pipe from the lower intake manifold and the EGR valve adapter assembly.
  7. Remove the EGR valve adapter assembly bolts.
  8. Remove the EGR valve adapter assembly from the cylinder head.
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