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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1348 (Engine Control System (Introduction) -- 1.8L (LNK)) >> Repair Instructions >> Idle Air Control (IAC) Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Idle Air Control (IAC) Valve And Electrical Connector
    GM828867Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the electrical connector (2) to the idle air control (IAC) valve (1).
  2. Drain the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
    3. Fig 2: Throttle Body, Coolant Hoses, IAC Valve And Gasket
    GM828869Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the two coolant hoses (2) to the IAC valve.
  4. Remove the fasteners retaining the IAC valve (3).
  5. Remove the IAC valve (4) from the throttle body (1).
  6. Remove any remaining IAC valve gasket (4).
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