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Why won't my truck start when the engine is warm? Starts fine cold and runs fine

(1990 Ford F-150)
in Grand Rapids, MN on January 17, 2015
Shut off truck after driving it will not restart until it cools off. It doesn't overheat and it cranks fine no drag just won't start. Here is what I know. F/p was bad replaced pump and sending unit, fuel filter, pressure regulator and TPS. Pressure and injector pulse are good even on no start.
Replaced plugs and wires, rotor, dist. cap, ICM, coil. Fire is good even during no start.
It runs fine until I shut it off and it has fuel and fire when it won't start. It is not showing any codes at all. I tried taking the computer out of the ignition loop by removing the jumper but it makes no difference.
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Popular Answer
on March 02, 2015
I have seen that problem caused by worm out starter brushes, pull starter and look at the condition of your brushes
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