1997-2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion

99 EB Engine Idle Rough

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Old 11-06-2001, 09:45 AM
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99 EB Engine Idle Rough

I've noticed the 5.4L in my '99 EB idles rough when i come to a stop or in park. Seems worse when come to a stop than parked. Ford Dealer replaced Valve Assembly (Idle Air Control) while under warranty. Everything was fine initially, with only a very slight temble from time to time. Now, it seems to be a constant rough idle.
Any ideas as to what is going on??? I've got 36,500 miles..so the warranty coverage is gone. Is this something I can fix myself or is it going to get expensive? Could it be "piston slab"??
 
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Old 11-06-2001, 01:13 PM
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99 EB Engine Idle Rough

 
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