i will pick that up monday no progress on the truck today because of rain will mess with it tomorrow or sat. also i will have a computer tomorrow from auto zone will use it as a test and return it if not

 

Check the ignition switch on the steering column down under the dash. these where notorious for coming apart causing all sorts of weirdness. You should get 1-2 secs of fuel pump run when the key is turned on. Then run continuous after engine starts cranking, If you short the FP test port on the eec-Iv test connector to ground the pump should run continuously while the Key is on. I have ran them this way when the Ecu pump driver was bad. I have also seen FP relays that where bad. Causing the pumps not to run or not shutoff. I have a truck just like yours mine is called an F-superduty it has a Dana 80 rear axle. A straight front axle. And 10 bolt wheels.

 

new fp relay and look one out of a runing truck same jumped out power to fuel pump same will check key switch

 

it's a f super duty but when I look parts up comes up f450 has 10 lug rear and solid front also I have a reman ecu for it got an other fp relay new in the box going to be messing with it all weekend if weather is nice thanks for the info

 

ok I got the truck running and she sounds good with straight pipe. Ended up running a hot wire from the battery to a switch to the fuel pump and she fired rite up. got to wire some lights in and take it for a nice long ride for a shake down. going to give the truck a tune up a good ride then start fabing up a bed and then installing the brush guard/bumper. Its off an old brush truck.

 

Have you tested the inerta switch ?