Ford Super Duty (1999-2016) :: F250 - No Power To Fuel Pump Relay


Dec 16, 2014

1999 f-250 super duty... okay, here is what i have going on. basically no power to the fuel pump. For the last 2 weeks the fuel pump relay and 1 of the relays behind the radio (next to the blue relay) would chatter and the truck would die. Wait about 5 minutes and turn the key on and if the chatter was gone then it would fire up and run... So NOW no chatter on either relay and not cranking up. - motor turns over just fine- just no power to fuel pump. So I changed out the relay- both behind the radio and the one under the hood. still chatters and no start. i have checked the Inertia switch and 12 volts there... Here is my question, when i turn the ignition on, i have no power to the base of the Fuel Pump Relay.... Where does the power come from to power the relay???

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Ford Super Duty (1999-2016) :: Fuel Pump Relay Location?

2004 super duty crew long bed 2wd, v10 auto SLT.

Manual says not in fuse block.

Looked behind radio, nothing, not even a space or the blue one there.

There are some on the firewall, driver side not marked. No pink wire.

Where else??

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I am looking for the location of the fuel pump relay for my 1999 Ford F550 V10 4WD Gas truck.

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After replacing fuel filter, pump relay, and air filter for good measure my 2002 f250 v10 gas engine still wont start. What to do?

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I of course lost my mind and told them this is there issue and there is no way in hell I am that unlucky that I received 2 bad tanks of fuel from 2 different high volume highway side fuel stations in the same 2 months. it is obvious they missed something or there is another issue that was not addressed. They claim there is no way they missed something. I am at a standstill.

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Anyway, I got tired of trying to pinpoint the ground fault, so I cut the brown wires at the back of the switch and under the hood at the top bolt-on electrical plug and replaced the bad section with a new wire. It works fine now with the only exception being I do not get the park light flash when I hit the remote lock button the second time. I do still get the horn chirp.

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ShadeTreeLandscaping - YouTube

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