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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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Thread Tools | Display Modes |
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Which custom tune is causing it? Are you having trouble with a similar custom tune? If you have set it back to stock, did the problem reappear? If so, how long did it take?
Sounds like it could be a mechanical issue giving out since you aren't having trouble until a day or two after loading the custom tune.
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