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Home >> Geo >> 1997 >> Tracker LSi, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests 1.6L >> Idle Control System >> Fast Idle Air (FIA) Valve
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Fast Idle Air (FIA) Valve

CAUTION: DO NOT  allow water to contact any other portion of throttle body when immersing fast idle air valve in water.
  1. Fast idle air valve is bolted to throttle body. To check valve, ensure engine is cool. Turn ignition off. Disconnect Idle Air Control (IAC) valve harness connector. Start engine and ensure idle speed reduces gradually as engine coolant temperature rises. If operation is as specified, FIA valve is okay. If operation is not as specified, go to next step.
  2. Remove valve from throttle body. Inspect throttle body for clogged air and water passages. Repair as necessary. Immerse valve in water. When water temperature is less than 158°F (70°C), valve should be open. When water temperature is greater than 158°F (70°C), valve should be closed. Replace FIA valve if operation is not as specified. Install a NEW gasket when installing valve.
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