Ford Super Duty (1999-2016) :: F250 5.4L - Engine Won't Start / Fuel Pump Relay Failed
Feb 1, 2014
I see several threads regarding engines that wont start for no apparent reason. My reason was a failed fuel pump relay. This sucker is hidden in the dash below and to the left of the radio. I got to it by taking out the ash tray. There are three relays under the cover. The upper left is the fuel pump relay. The one to the right is the turn signal relay. I don't know what the bottom left is for.
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Its it true, that the fuel pump relay is hid in the fuse and relay box, and non serviceable ?
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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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I am trying to diagnose my fuel system, but I cant seem to find the fuel pump relay. My truck is an 2004 f250 crew cab work truck with 5.4L. it seems that the relay can be mounted anywhere from behind the radio or in the engine compartment as well as built in to the fuse box under the steering wheel.
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Looking for where the fuel pump relay is 2001 f 250 SD reg cab 2 wd. Won't Start On pump gas , starting fluid yes
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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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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.
I have replaced the fuel filter and fuel pump. When the key is turned the pump gets juice and 2 seconds later is not getting juice. No lines are coming into it, so it's not getting up to pressure and shutting off.
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2003 f350 5.4... Is the fuel pump relay behind the radio? Under hood? Or built in the fuse panel and unserviceable?
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Truck was dead- 2001 F250 V10... Has a starter relay (solinoid) behind battery... put a new relay in there- no go- cleaner terminals... then I put key in start and shorted the 2 terminals in the relay and she cranked right up. That would mean the starter is still good correct?? something in the ignition system?
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I have the gas 5.4l in my 01 F250 Super Duty. I had to change out the leaking Heater hose before I could attack this other issue. The truck starts when it feels like it. I changed the fuel filter and it started fine. Then the next day it wouldn't. Later it would. However each time it does start it dies when throttled up. I am down to thinking it is the fuel pump. My question is, because changing the pump sucks about as bad as changing the heater hose. Can I install an inline fuel pump and deal with the sump pump in the tank later? Are there any Cons to doing this?
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The fuel pump fuse keeps blowing intermittently. I would assume it's a wire grounding out somewhere but I can't seem to find one yet. I do have a faulty purge solenoid on the canister but I don't think that would cause this. The reset switch doesn't seem to be tripped either.
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I have a 2010 f250 6.4 About two months ago the truck just quite on me. I am a farmer in south jersey and have a decent background in diesel motors. First thing that came to mind was fuel. I assumed I was having a fuel issue (clogged filters, failed pump, etc.) truck only had 45,000 miles on it so I took it to my local dealership for what I assumed would be a warranty job. I dealer service all my trucks while under warranty. Long story short I was told it was a fuel contamination issue which scared the walls of the hpfp throwing metal pieces into the injectors, fouling them.
I would need all new injectors, fuel rails etc. as well as new filter housings, fuel tank cleaning, etc. I had receipts for every drop of fuel put in the vehicle and fought all the way to through the dealership to Ford who sent out a rep and who denied the warranty work. Fortunately my insurance company covered the ordeal and all repairs were completed. I got the truck back and 2 weeks later the truck died on me again. I called the dealership back who supposedly warranted the repairs but there first words were there is no way it is their problem, they would look at it but I have to consent that if they find it is contamination again I am responsible for the repairs which we all know just to diagnose they have to remove the cab etc.
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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I have a 2001 F-250 XLT 4x4 with V10. Truck will not start. No fuel pressure. My Haynes manual does not show ignition or fuel delivery wiring. I have found the relay box behind the radio/dash. I need a wiring diagram and info on which relay is the fuel pump relay. Want to know so I can jump relay to see if fuel pump is okay.
Truck had sat for a few weeks being ran very little, so had to jump start yesterday. Ran for about 15 min, the shut off, re-started and ran for 30 min. Truck sat for about 1.5 hours then would not start. Charged battery overnight and it is 100%.
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2000 f250 V10 ...
Problem: More often than not when the key is turned to run (?), prior to engaging the starter, the fuel pump does not turn on for its 5 seconds. I have installed a fuel pressure tester gauge to watch the fuel line pressure. It was a little shaky to diagnose because if the line had pressure/fuel from the previous run it will start and run a short time and then die from lack of fuel. Unless the fuel pump activates when the key is turned to run, prior to full start, then there will be no fuel coming from the pump. No start. If you work the key to run a few times until the pump engages its good to go. The truck has never died while driving, once it gets that initial pump activation it runs good until the next start up cycle. When the pump does work it builds up to good "book" pressure and holds it at 39 when the engine is shut off.
We have put off changing the fuel pump for obvious reasons but can not see how it could be the problem since it has never quit once after we get it started. Are we wrong? We know the fuel shut off is on as it will run. We have changed the key lock tumblers, the ignition switch and the fuel pump relay. (behind the radio). Next up is to re-seat all the fuses and relays in the main fuse panel box under the hood. I just read that today on FTE. Is there a test we can do or some engine codes we need to look for? This problem is getting old fast.
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1999 ford F250 SD V10 ... When this goes on the truck misfires and tries to die. Usually I can key the ignition in nuetral and the clicking stops and the truck starts and runs better....
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The #8 fuse under the hood was blowing on my '00 F-250 every time I turned on the healights meaning I would lose power to my park lights. The brown wire coming from the back of the headlight switch showed a dead short to ground that I traced to somewhere between the switch and the firewall.
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.
My Haynes manual indicates there should be a relay box with a Park Lamp relay, Driver Unlock relay, All Lock Relay, and All Unlock relay. The park light relay looks like it sends the blip of power to the park light circuit. Where this relay box is? I'd like to splice into the brown wir coming out of it to restore the light flash when I lock the truck since sometimes it's too noisy to hear the horn.
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2004 F250 SuperDuty 6.0L Diesel. The turn signal (left or right), it would make a buzzing noise, so I located the relay under the steering wheel (by putting my hand on it and seeing which one was buzzing) and replaced it, I bought a replacement at Schucks, then the buzzing noise went away, and the clicking noise is back.
But.... I don't see the turn signal lights in the dashboard and the turn lights are not working, I checked, what could be the problem ? I read the owners manual, in the fuse box under the steering wheel, fuze #18 is used for turn lights, but it is not blown.
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Recently got a 2003 f 250 6.0 that has had a little work done on it. Absolutely love it with 1 exception. When I turn on the ac or heat It blows a 10 amp fuse that goes to the blower relay. It was occasionally now it's all the time.Blower ok, fan speed resistor ok. What or where to look.
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I have an 2005 F250 4.2tdi XLT. There is a buzzing sound coming from somewhere near the fuel filter area in the engine bay. This started after changing the fuel filter during a service. Its also difficult to start now. It has to swing for 10 secs before the engine fires. What it could be?
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My dads 05 f250 6.0 PSD. He says he'll take off in the morning and the fuel gauge will randomly drop to empty and trigger the low fuel light, but then also the Check Engine Light will come on. My brother did a code scan and no codes come up. Where we should be looking to remedy this one?
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