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Home › Buick › 2005 › Park Avenue Base › Repair and Diagnosis › Engine Performance › System › Engine Control System - Introduction › Repair Instructions › Idle Air Control (IAC) Valve Replacement › Removal Procedure

Removal Procedure

    Fig 1: Removing/Replacing Fuel Injector Sight Shield & Fuel Pressure Connection Cap
    GM49594Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36) or Fuel Injector Sight Shield Replacement (L67) in Engine Mechanical.
    2. Fig 2: View Of IAC Valve Electrical Connector
    GM155466Courtesy of GENERAL MOTORS CORP.
  2. Remove the idle air control valve electrical connector from the idle air control valve.
    3. Fig 3: Removing/Installing IAC Valve Attaching Screws
    GM200431Courtesy of GENERAL MOTORS CORP.
  3. Remove the two idle air control valve attaching screws.
    4. Fig 4: Removing/Installing IAC Valve
    GM481081Courtesy of GENERAL MOTORS CORP.
  4. Remove the idle air control valve from the throttle body.
    5. Fig 5: Removing/Installing IAC Valve "O" Ring
    GM481091Courtesy of GENERAL MOTORS CORP.
  5. Remove the idle air control valve O-ring from the idle air control valve.
  6. Inspect the idle air control valve O-ring for cracks or damage. Replace the idle air control valve O-ring if necessary.
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