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Chevrolet
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2004
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Impala Base, 3.4 E
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System 3.4L (Introduction)
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Repair Instructions
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Idle Air Control (IAC) Valve Replacement
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Removal Procedure
Removal Procedure
Disconnect the idle air control (IAC) valve electrical connector.
Fig 1: View Of IAC Valve Electrical Connector
Courtesy of GENERAL MOTORS CORP.
Remove the IAC valve screws.
Fig 2: Removing IAC Valve Screws
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Remove the IAC valve.
Fig 3: Removing IAC Valve
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Remove the IAC valve O-ring.
Fig 4: Removing IAC Valve O-Ring
Courtesy of GENERAL MOTORS CORP.