F 250 2WD Pickup V8-351 5.8L VIN H 4-bbl HP (1985)
CURB IDLE SPEED ADJUSTMENT
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Place the transmission in Neutral (manual) or Park (automatic). Set parking brake and block wheels.
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Bring engine to normal operating temperature (upper radiator hose hot).
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Disconnect the electric connector on the evaporative cannister purge solenoid.
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Disconnect and plug the vacuum hose to the Vacuum Operated Throttle Modulator (VOTM) kicker.
NOTE: Leave connected at elevations above 4000 feet.
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Run engine in neutral at 2000 rpm for 120 seconds. Return engine to idle and place the transmission in Drive position (Neutral for manual
transmissions).
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Check/adjust curb idle rpm to specifications within 90 seconds. If adjustment is required, loosen saddle bracket locking screw, then adjust rpm
using saddle bracket adjusting screw. See: Specifications
NOTE: If time is exceeded, repeat previous two steps.
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Place the transmission in Neutral (manual) or Park (automatic). Rev the engine momentarily. Place the transmission in specified position, and
recheck curb idle rpm. Readjust if required.
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Remove the plug from the vacuum hose to the VOTM kicker and reconnect.
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Reconnect the electric connector on the evaporative cannister purge solenoid.
Type 4180C-4V
CURB IDLE SPEED ADJUSTMENT
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Set parking brake, block wheels and place the transmission in Neutral (manual) or Park (automatic).
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Bring engine to normal operating temperature (upper radiator hose hot).
