Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Without A/C
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Turn idle speed screw to specified curb idle (automatic transmissions in drive with wheels blocked and parking brake set). See: Specifications
With A/C
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With A/C "OFF", turn idle speed screw to specified curb idle (automatic transmissions in drive with wheels blocked and parking brake set).
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Disconnect wire to A/C compressor clutch and turn A/C "ON".
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Open throttle momentarily to assure solenoid plunger is fully extended.
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Turn solenoid screw to the specified idle speed. See: Specifications
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Reconnect wire to compressor clutch.
THROTTLE LEVER ACTUATOR
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Disconnect vacuum hose from solenoid valve to the actuator diaphragm.
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Connect an external vacuum source to the diaphragm and apply 20 inches of vacuum.
