C 1500 Truck 2WD V8-350 5.7L (1989)
Idle Speed: Adjustments
Idle Speed
Without Idle Speed Solenoid
With Idle Speed Solenoid
IDLE SPEED ADJUSTMENT
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Disconnect and plug hoses as indicated on emission label.
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Adjust idle to specified rpm by adjusting idle solenoid screw (plunger fully extended) or throttle stop screw.
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Air-conditioned models equipped with idle speed-up solenoid, turn AC on, disconnect compressor clutch wire with solenoid fully extended, adjust
solenoid to obtain specified rpm. Turn air conditioner off and reconnect compressor wire.
-
Electrically disconnect idle shutdown solenoid, if so equipped, and adjust idle speed screw or solenoid hex-head screw to obtain SHUTDOWN
IDLE SPEED of 450 rpm, unless specified otherwise. Reconnect solenoid lead.
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Reconnect hoses, unless specified otherwise on label. On models equipped with CEC solenoid, disconnect electrical lead.
