i'm assuming this is a 3.8L FI v6.
first thing to do is to disassemble your throttle body assembly and give it a good thorough cleaning with an old tooth brush, can ( or tank ) of carb cleaner and compressed air. once you've got all the surfaces ( make sure to get the edges of the butterfly ) and ports cleaned out, then you can worry about things like the throttle position sensor and idle air control.
when is the last time you had the trans serviced? a full fluid exchange and new trans filters might be in order.
Last edited by bob k. mando; 11-14-2013 at 02:05 AM.
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