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Q:

my rpm go up and down on 2003 Ford Windstar

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
my rpm go up and down when my car is cold
(1) Answer
Fluctuating idle speed can be caused by an air intake problem or a sticking idle air control valve. Have the vehicle diagnosed to be sure.