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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

shiftin problems after programmer

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Old Dec 12, 2011 | 10:47 PM
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Default shiftin problems after programmer

i installed a performance programer like 2 weeks ago and it shifted good, but today it started to shift weird as if i was running out of gas even when i returned it to stock whats wrong, please help?
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Old Dec 13, 2011 | 01:17 PM
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Did you try customizing a tune?
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Old Dec 14, 2011 | 07:21 PM
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yeah i did, and i maxed out the rpms, and shift points, it was running good for bout 2 weeks, but now it isnt , think it is a spark plug or somthing?
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