Question about 2003 Ford Expedition
Check for vacuum leak, usually related to the pcv vac line to the throttle body
Posted on Apr 19, 2014
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Posted on Jan 02, 2017
you have a bad temp sender,if this does not solve the rough idle than you have multiple issues and your idle control valve is not functioning properly try removing and cleaning it.its also referred to as IAC (intake air control)
Posted on Feb 05, 2010
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