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Home >> Buick >> 2005 >> LeSabre Custom, 4T65E/MN3 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Exhaust Gas Recirculation (EGR) Valve Replacement >> Removal Procedure
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Removal Procedure

  1. Turn OFF the ignition.
  2. Fig 1: Removing/Installing Identifying EGR Valve & Components
    GM12312Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the electrical connector from the exhaust gas recirculation (EGR) valve.
  4. Remove the two EGR valve retaining nuts (4).
  5. Remove the EGR valve (1).
  6. Remove the gasket (2) from the EGR valve inlet pipe.
  7. Clean the EGR valve inlet pipe (3) of dirt and debris.