rough idle when warm

  1. MPBGT

    Rough Idle when warm

    I have a 2004 4.6 Expedition- I've known the car since new and know all its history. It has 125,000 miles. It has had an issue for years of rough idling. It will be fine and smooth when its cold, but once its up to temp it idles rough both in gear and in park/neutral. It almost seems to have...
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