Well we had someone bring in an 89 f-150(yes in my auto class its a working shop cool hu, no better way to learn)whith a fuel injected 300-6 on it. Well he says that it dosnt run and if he hooks a jumper from a power sorce directly to the pump then it works. Im just wondering if there is anything i should look for other than just torn wires, already checked the fuses and their good. Teacher is too by the book to get straight answers out of sometimes . Thanks guys.

 

try the fuel shutoff / inertia switch. sounds like that or maybe the fuel selector switch.

 

well i got the truck up on the hoist and ohmed the pump, its good but theres no power on the leads so the shop teacher made me spend 30min printing electrical diagrams for the inertia switch. Hopefully ill get it fixed tomarow.

 

Are you in high school or tech school?
Jon

 

its kinda a combo, its through the highschool but its a vocational center. They train you in the actuall work inviroment. Its a realy cool deal, and at the end if your adendence is perfect and you were a good worker they place in jobs too.

 

my buddy has a 99 f250 econo 4.9 his wont start either. at this point im thinking its the solinoid. but i could be wrong.

 

Checked everything up to the realay today, im thinking that its shorted to ground. Everything just has a half a volt in it is all.