why does my 93 f150 not start after getting warm?

Asked by Austin_c_davis Mar 26, 2024 at 08:55 PM about the 1993 Ford F-150 XLT 4WD LB

Question type: Maintenance & Repair

i have a 1993 f150 351 V8, 30,XXX miles. the truck was sitting for a good bit
of time before I got it. Ive replaced fuel tanks, oil, fuel and oil filters.. the truck
starts right up first crank after it sits for a few hours. but as soon as you shut it
off, no matter if you drive 2 minutes, or 5 hours. it wont start again, just
cranks, but wont turn over. batterys good, not sure what it could be. does
anybody have any clue?

3 Answers
2,315

Jeff answered 7 months ago

Check the basics. you are losing either spark or fuel. Check fuel pressure, injector pulse and spark. My money would be on a bad TFI module on the side of the distributor. That module may also be on the left inner fender near the hood hinge.

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310,255

Gene answered 7 months ago

Jeff is right about the TFI modules as they are high fail and act just like that when they go bad. But this old I would also replace the distributor pickup coil in side the distributor at the same time.

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40,005

beatupchevy answered 7 months ago

Purge the fuel rail off the shrader valve with a piece of hose into a bottle next time it won't start ( get creative & don't start any fires ). If it fires right up replace the fuel pressure regulator

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