Repair guides and support for the seventh generation of Ford F-Series trucks. Models include the F100 (discontinued in 1983), F150, F250, F350, and others.

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Hot days truck wont start

Hi my truck runs great in the morning then during the day as its hot out side the truck wont start till it cools off i already replaced the thermostat

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@kimberl , Kim, the more info. you can provide the better/accurate the answer, year, engine size, gas or diesel, auto/standard trans, recent work done or damage, etc. help ifixit volunteers help you! : )


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TFI module on the distributor are notorious for hot soak failure. Coils are known for this failure mode also.

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Kim Smith will be eternally grateful.
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