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running rough on 2004 Ford Freestar

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Changed the spark plug coil pack wires and plugs ran great for a week now its running rough again. Please help!!
(2) Answers
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2004 has On Board Diagnostics level two (OBD2) with pretty good in built diagnostics that require a scan tool to retrieve information stored in the computer of your car. Has a Check Engine Light come on or what was the code stored that prompted replacing the ignition components?
If it ran good after components were replaced ensure wiring connections or vacuum hoses have not fallen of in the engine compartment. So many things could be responsible for making the engine run poorly it is hard to speculate without being able to drive the vehicle or perform some tests first hand.
Rough like how? Go to town hall on edmunds.com and look up 2004 Ford Freestar engine problems. You'll be amazed if this is your problem.