ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

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Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up|Page 3303 > < Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up|Page 3301

Aerostar AWD V6-183 3.0L (1991)

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Idle Speed/Throttle Actuator - Electronic: Description and Operation

Throttle Body Assembly

The Idle Speed Control Bypass Air (ISC-BPA) valve is used to control engine idle speed and is operated by the Engine Control Assembly (ECA). This
valve allows air to pass around the throttle plates to control cold engine fast idle, no touch start, over temperature idle boost and engine idle load
correction. 

Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up|Page 3303 > < Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up|Page 3301