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you probably have a coil pack assy. that is breaking down.have a place scan the computer, you should have a p0301-p0308.the last number is the cylinder that is missing.a coil pack and spark plug should fix it.

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โˆ™ 2005-01-13 10:34:12
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Q: Why would a 2000 Expedition 4wd XLT with 62K miles have a Service Engine light on and feel like it has a non-firing piston?
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