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iIf it is a electric fuel pump you cam easly tell if it is bad by simply turning the key to the on possion carefull not to engage the starter. lissen for the pump to run for 3 sec do this three or four times if you cannot here the pump trying to prime then it is bad.

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If the pump is electric and i am sure it is turn the key to the on possion, careful not to enguage the starter. listen for the pump to prime {about 3 or 5 sec} if you do not here the pump then it is bad.

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Start with the basics :

Has the fuel pump inertia switch ( shut off switch ) " tripped "

Have you checked the fuse for the fuel pump

What about the fuel pump relay

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Q: How do you tell if the fuel pump is bad in a 1990 F150?
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