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Home › Buick › 2004 › Regal LS › Repair and Diagnosis › Engine Performance › System › Engine Controls 3.8L (Introduction, Service & Replacement) › Repair Instructions › Idle Air Control (IAC) Valve Replacement › Removal Procedure

Removal Procedure

  1. Remove the fuel injector sight shield. Refer toFuel Injector Sight Shield Replacement (L36) or Fuel Injector Sight Shield Replacement (L67) in Engine Mechanical 3.8L.
    2. Fig 1: View Of IAC Valve Electrical Connector
    GM155466Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the idle air control valve (IAC) electrical connector.
    3. Fig 2: Locating IAC Valve Screws
    GM185614Courtesy of GENERAL MOTORS CORP.
  3. Remove the IAC valve screws.
    4. Fig 3: View Of IAC Valve
    GM185583Courtesy of GENERAL MOTORS CORP.
  4. Remove the IAC valve.
    5. Fig 4: View Of IAC Valve O-Ring
    GM185626Courtesy of GENERAL MOTORS CORP.
  5. Remove the IAC valve O-ring.
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