ford Workshop Repair Guides

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Idle Speed/Throttle Actuator - Mechanical|Testing and Inspection > < DC Motor Idle Speed Control Actuator|Page 3775
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Idle Speed/Throttle Actuator - Mechanical: Description and Operation

Fig. 24 Vacuum operated throttle modulator (VOTM)

    The VOTM, Fig. 24, acts as a variable carburetor stop. The plunger extends when vacuum is applied. 

Idle Speed/Throttle Actuator - Mechanical|Testing and Inspection > < DC Motor Idle Speed Control Actuator|Page 3775