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Home >> Geo >> 1993 >> Prizm Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Control System >> Air Valve (PRIZM)
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Air Valve (PRIZM)

With engine temperature less than 140°F (60°C) on Prizm except LSi or 176°F (80°C) on Prizm LSi, air valve should be open. With engine at normal operating temperature, air valve should be closed. Replace air valve if defective.