Fuel pump relay - F150online Forums



Fuel pump relay

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  #1  
Old 12-14-2008, 10:46 PM
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Fuel pump relay

is there a Relay for the Fuel Pump on a 2004 Ford F150 4x4 with the 5.4L engine..i am having starting issues and i checked the fuse already and it was good..still put a new one on..so i am wondering if there is a relay for the fuel pump and where it is located..
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Old 12-14-2008, 11:10 PM
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The fuel pump relay is integral to the central junction box inside the truck and cannot be serviced separately. When the fuel pump relay fails, you must replace the entire fuse box.
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Old 12-14-2008, 11:43 PM
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Thanks man..
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Old 12-14-2008, 11:46 PM
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Well, to expand further, let's try and fix your starting problem. What exactly is it doing?
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Old 12-15-2008, 08:06 PM
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Fuel pump is not engaging...She just died Suddenly..i drove from a Long trip..got home parked the truck..went back about 15 minutes later and she started..Put it in Gear and she stalled..Hasnt started again..i checked the fuse and it was good..i had no signs at all the Fuel Pump was going so im thinking that shouldnt be the problem..Been told that it might be a small wire broken somewheres that goes to the fuel pump..just a little ticked off right now,,Xmas coming and the truck needing work..UGGH
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Old 12-16-2008, 09:13 AM
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Does it have any codes?

Fuel pump driver modules fail a lot more than the pumps or relays do, especially in areas where water/mud can get to it. It's located above the spare tire on the last crossmember between the two frame rails, you'll have to drop the spare tire to see it.
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Old 03-13-2012, 10:09 PM
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i have a 2004 fx4 with 5.4 triton. i've replaced the fuel pump, filter, and have put 2 new fuel pump drive modules on (one aftermarket and one oem ) i can hear the fuel pump running but the engine will not turn over. the anti-theft light blinks eratically and the info cluster reads "check gauges". does something need to be reset or recoded for the computer to accept these new FPDM'S?

Last edited by rick bremer; 03-13-2012 at 10:13 PM. Reason: spelling
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  #8  
Old 03-14-2012, 02:05 AM
glc
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If it doesn't turn over, your battery is dead..........
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  #9  
Old 03-15-2012, 10:55 PM
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Quote:
Originally Posted by glc View Post
If it doesn't turn over, your battery is dead..........
I agree, fuel pump doesnt control your crank
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Old 03-15-2012, 11:34 PM
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Right, sounds like a PCM/PATS issue. Starter interrupt..
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