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In most cases if the fuel pump stays running its likely caused by a sticking Fuel pump relay and I would try switching it out with a known good one and see if the problem is resolved. The relay is the 303 relay in the interior fuse panel. ... I have a 2004 F150 Lariat with a 5.4L 3v engine that sounds like a diesel when idling, but runs great ...Ford F-150 2004, Fuel Pump Relay Connector by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality.Location for a 2004 f150 heritage fuel pump. Engine Engine creanking over bot was not starting, have a new battery and the alternator is good. … read more Ron …The point for the fuel pump test in the self-test connector is circuit 926 (an orange-striped light blue wire). Start the process by grounding that point. Switch the ignition on after to make the fuel pump relay start working. This will make the fuel pump the vehicle’s tank switch selected to turn on. Jumping Pin 2 to Pin 6Okay, In the diagrams below I have included the wiring diagrams (enlarged just to show circuit) for the fuel pump circuit. It consists of a fused power supply to the pump, PCM controlled power, a 4 pin relay, the fuel pump, and three (3) ground locations, along with six (6) wires and a junction box.Ford F-150 2004, Fuel Pump Relay Connector by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality.As for checking the power to the pump, my usual procedure is to find the relay, and check for a power supply, a signal wire, and power flowing out of it when the signal wire has power. If that stuff all checks out, it's on to the tank. I had to throw that all out when my pump died in my '05, since it has a fuel pump control module though.BLACKOP555. Your fuel pump relay should be located on the air cleaner box on the side up near the mess of wires on driver side of the engine this guide will help test it with the location of the relay in the diagrams below. Check out the diagrams (Below). Please let us know what happens.Replacement of a fuel pump relay that is soldered to the fuse box circuit board. Repair of a connector and board trace as well. Relay available at amazon:htt...Brand new fuel pump. Tested it with direct power and it operates. I have only 6.5 volts at the fuel pump connector. Good ground, same reading running a direct ground. Same 6.5 volts at inertia switch. Fuel pump relay is good but have the same 6.5 volts being supplied at the relay terminal. The coil Circuit has 12 volts.Oct 19, 2016 · Wheel chocks. Most fuel pump relays are located in the engine compartment inside the fuse box. Step 1: Turn on the ignition key to run. Listen for the fuel pump to actuate. Also, listen to the fuel pump relay for any buzzing or clicking noise. Step 2: Start the engine. Check that there is oil pressure. Replacement Style Fuel Pump Relay. This fuel pump relay directly replaces your faulty 1993-2004 Ford Lightning fuel pump relay! When your fuel pump relay is activated, it allows current to pass through the fuel pump, which pumps the gasoline necessary for the starter to make the car run. Over time the connections can become faulty or short out ...SOURCE: Fuel pump relay and fuze location for 2004 F150. For the new body style F-150 the fuel pump relay is not a serviceable item, it is built into the fuse panel. The fuse is fuse 34 ( only for 04 & 05 MYs ) which is called Fuel injectors in the 04 Owners Manual. The other items.1999 to 2016 Super Duty - 2003 V10 Fuel Pump Relay? - I went to start my truck today and got nothing but a good strong crank. It's not out of gas and all gauges and lights work. Immediately I suspected fuel as a problem so doing the simple things first, I checked fuse #40, it's fine. ... 2004 - 2008 F150; 1997 - 2003 F150; Lightning, Harley …

Ground is always present on circuit 1. As soon as the ignition switch powers up circuit number 2, the EEC Power Relay closes circuit 3 to circuit 4 . This causes voltage to reach the fuel pump relay, the fuel injectors, the fuel injection computer, etc. to get power through circuit number 3. As you can see it's nothing too complicated and ...2004 f250 fuel pump relay repair. I had typed up a long well thought out first post but android crashed and I lost it. So here is the abridged rum and coke version: 2004 California spec F250 crew shortbed 4x4 5.4 2v 4.10:1 lariat 8800 gvwr. Diagnosed random stalling issues as bad fuel pump.1994 F150/4.9 engine, automatic. Having a weird issue with my fuel pump relay. Let the truck sit for a few hours and the fuel pump won't run. -If I swap the relay out with any other identical relay in the box (horn relay for example) it starts right up. -If I test whichever circuit is now running on the fuel pump relay (horn), it works fine.This 2004 Ford F250 with a 5.4 liter gas engine came in with the complaint that the engine would occasionally stall. Testing found a code P0231 stored which indicates a problem with voltage to the fuel pump. Studying a wiring diagram showed several things. Number one is that when the fuel pump relay is engaged … Continue reading "2004 …SOURCE: Fuel pump relay and fuze location for 2004 F150. For the new body style F-150 the fuel pump relay is not a serviceable item, it is built into the fuse panel. The fuse is fuse 34 ( only for 04 & 05 MYs ) which is called Fuel injectors in the 04 Owners Manual. The other items.

2004 f250 fuel pump relay repair. I had typed up a long well thought out first post but android crashed and I lost it. So here is the abridged rum and coke version: 2004 California spec F250 crew shortbed 4x4 5.4 2v 4.10:1 lariat 8800 gvwr. Diagnosed random stalling issues as bad fuel pump.7. No Fuel Pump Vibration After Turning On The Ignition. Under the hood of the Ford F150 are two different fuel pump relays; one relay pump uses the four-pin charge, and the other uses the five-pin charge. Sometimes, the high pressure of the gasoline pump results in low fuel pressure, which harms the battery.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. 0:00 / 1:14 Fuel Pump Relay Location Ford F150 2004 2005 2006 20. Possible cause: There are four terminals on the relay. One is power, one is the pump circuit, th.