VEHICLE DESCRIPTION: MULTI-PURPOSE PASSENGER VEHICLES EQUIPPED WITH 5.0L ENGINES ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE STATES OF ALASKA, IDAHO, IOWA, MAINE, MICHIGAN (UPPER PENINSULA ONLY), MINNESOTA, MONTANA, NEBRASKA, NEW HAMPSHIRE, NEW YORK, NORTH DAKOTA, SOUTH DAKOTA, VERMONT, WISCONSIN, AND WYOMING. THESE VEHICLES, WHEN OPERATED FOR EXTENDED PERIODS OF TIME AT HIGHWAY SPEEDS AND TEMPERATURES BELOW -20 DEGREES FARENHEIT, DO NOT RETURN TO IDLE DUE TO ICE IN THE THROTTLE BODY.