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Q: Well i was woundering what causes my truck to not get spark. It cranks on 1997 Ford F-150

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I ran fine other day then died
(2) Answers
check fuel pump. manual test is turn the ignition key and stop before it turns over. should be a sound come from the fuel tank. short whirring sound. thats fuel pump priming the line. should last 2 sec.s than cut off. no sound than no pump. if sound but last longer than 2sec.s, than fuel pump is laboured and failing.
check fuel filter. possibly clogged.