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Engine surging at low rpms/speed

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Old Aug 11, 2009 | 09:35 PM
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Engine surging at low rpms/speed

I have an '04, F150 Lariat, 4x4, 5.4L V8, ~100K miles, original plugs. Engine surges just a bit at low rpms (1000 to 2000 rpms) and low speeds (25 - 40 mph). Higher speeds - not much of an issue. But, if I get it to say 60 mph, coast a bit then gently accelerate, it runs rough till I slightly punch it to change gears. Fuel mileage is about 16 - 18 on back roads (~45 - 60 mph usually, no frequent stopping). I know I need to change plugs and fuel filter, what else should I do? Thanks for help.
 
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Old Nov 17, 2009 | 02:01 PM
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Anyone else having this issue, I have a friend that experiencing the exact same issue.....any help would be appreciated.
 
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Old Nov 17, 2009 | 03:02 PM
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plugs and filter first.
 
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Old Nov 17, 2009 | 10:44 PM
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That's what I suspected and will tell him to give it a try, thanks.
 
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