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  1. MPBGT

    2004 4.6 fast idle

    I have a 2004 4.6 expedition 2wd that seems to stay on fast idle longer than it should. I would assume this is an iac issue, but the info on the 4.6 iac seems to be conflicting. Does the 2004 have a Normal iac that can be cleaned or replaced? Any other thoughts on the fast idle staying active...
  2. 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...
  3. MPBGT

    Rough idle @ operating temp and idle

    I have a 04 Expedition 4.6. It idles fine when it's cold,but once it's up to operating temp it seems to idle rough, but inconsistently. It feels like an intermittent miss or something out of balance. The car has new-plugs, coils, egr controller and egr valve, fuel filter. I have cleaned- PCV...
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