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Re: 2003 EXP. E.B. 5.4 rough idle
Update:
After replacing ICM (Ignition Control Module) in May. Plugs in June, Coils Packs in July, checking for vacuum leaks.... The truck ran great until yesterday. Now I am Idling rough. Most of the other misfires were at running speeds.
Should I have replaced everything at once?
I am really frustrated.....
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