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2004 to 2008 F-150 and Mark-LT
4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs.


 
 
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Old Thu, July 22nd, 2010, 11:22 AM
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Jackpine Jackpine is offline
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Since you have an 08 with less than 20,000 miles, I cannot believe it would be the MAF or throttle body. The fuel driver module is in front of your spare tire on a crossmember and you can see it if you lower the tire. Again, I would not suspect a problem there in an 08 unless you drive a lot on "salted" roads. If you do have a problem, it will have a "corroded" look and may appear to be distorted. If that is the case - replace it right now.

Again, a clogged fuel filter doesn't seem likely in 20K miles unless you fill up at stations where there's a lot of sediment in the gas.

Plugs & COPs? Maybe, but I doubt it.

Does the problem occur at all with the stock tune and, did the truck ever throw any codes? Possibly, there's a PCM flash update that would fix this and since you don't have custom tunes, it wouldn't hurt to ask your dealer about it.

I don''t see why Edge is referring you to PHP - they should only do that if you have a Gryphon.

- Jack
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