G 2500 3/4 Ton Van V8-350 5.7L VIN L 4-bbl (1983)
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Manually open the throttle slightly and allow it to close against the extended actuator plunger. With engine warm, idle speed should be:
Federal - 1500 rpm
California - 1600 rpm
NOTE: The throttle lever actuator is designed to control emissions by holding the throttle open slightly during deceleration and coasting.