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Home >> GMC >> 1999 >> Forward Control 7.4 J >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls (Gasoline Engines) >> Output Signals >> Idle Air Control (IAC) Valve
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Idle Air Control (IAC) Valve

See IDLE SPEED  under FUEL SYSTEM (GASOLINE ENGINES).

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