96 ford econoline 6cyl, no power to fuel pump, new relay,fuse is good, no power out of power distribution box

Question

This problem has me stumped, the inertia reset switch has no power at that point either.....any help or guesses would be a help.

Answer 1

the inertia switch gets power from the relay in the box up front...

basically on that year truck, power goes into 2 sides of the relay with the engine computer grounding one leg to make the relay work and send power thru the box to the inertia switch to the pump...

The circuit will only be grounded for the first 2 seconds after the key is turned on and while the engine is cranking or running (as determined by the crank sensor on v6s and the ignition module/hall effect sensor in the inlines)

My guess is you have no ground at the processor.... Why? check all of your fuses and make sure they are good.. check for fire, my guess is you have none or it's not sending a signal to the PCM that it's working....

On the old inlines, it's usually a case of the ignition module or distrbutor going out.... the v-6s were a little more complicated and would need to see what is up

Answer 2

i think it might have a bad ignition switch in it,,i own a repair shop,,and i had a ford truck do this a while back,,when we replaced the ignition switch,,it went out again,,i checked and the switch was still working good,,finally found it,,it was a bad fuse-able link,,one of the ones that come off the positive side of the solenoid switch,,it was a hard one to find though,,good luck,,also check for power at the relay switch,,this helps determine if your going to get power to anything else,,hope this help,s.

Answer 3

Check the ignition switch. If that is okay, then start searching for a short somewhere in the system. Could be a cut or broken wire, or a burned out fusible link.