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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 120 (Engine Mechanical - 3.8L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Removing Exhaust Gas Recirculation (EGR) & EGR Pipe

Removing Exhaust Gas Recirculation (EGR) & EGR Pipe

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: Heated Oxygen Sensor
    GM1403423Courtesy of GENERAL MOTORS CORP.
  1. Remove the heated oxygen sensor.
    2. Fig 2: Exhaust Manifold Heat Shield
    GM965504Courtesy of GENERAL MOTORS CORP.
  2. Remove the exhaust manifold heat shield bolts.
  3. Remove the exhaust manifold heat shield.
    4. Fig 3: View Of EGR Valve Adapter Assembly
    GM36667Courtesy of GENERAL MOTORS CORP.
  4. Remove the exhaust gas recirculation (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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