Ford 6.7L Power Stroke Diesel :: Aux Fuel Gauge And Fuel Pump Both Quit
Dec 10, 2011
I have my aux fuel tank pump hooked to upfitter 3. It has worked perfectly until this week. I started to transfer fuel and the aux fuel gauge and fuel pump both quit. The led on upfitter switch 3 still illuminates, but no fuel pump. I found fuse 9 on passengers kick panel is for upfitter 3. The fuse was good. Is there another fuse somewhere for the circuit I've missed? I can trouble shoot the wiring if necessary, but it's tough to do all behind the left side underbed box and not easy to get to. I've missed something simple before I go further????
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So, I just had the fuel pump replaced on my '15 6.7 a month ago and it just died again. (next day edit: it didn't actually die, it showed all the same symptoms)
Same symptoms: whining sound, low fuel pressure warning, reduced power warning.
This time I'm 50 miles from home so I pulled off the road before it shut off. Interesting, I was in a hilly area and my low fuel warning came on too. We are waiting for a tow. I was considering trying to push on but don't want to get stuck in a dangerous spot on the highway. We're in a church parking lot.
So, last time this happened I was on flat road with about a half tank of fuel on a lunch break. I ran a mile after the warnings came on to feel out the issue and to see what would happen. I happened to be only about a mile away from my dealer so I drove that way. I got reduced power warning and then it cut power on me (limp mode). I made it to about 100 yards away before it cut off.
This time, I was in a hilly area at night on a windy two lane road with no shoulders in the woods. I was miles from civilization and was showing below a quarter tank of fuel. ~100 miles to EMPTY. I got the low fuel pressure warning first and then the reduced power mode before the whining noise started. I was climbing a hill on a curve at the time. I drove a quarter mile and then pulled off the road into a parking lot so I wouldn't be stuck on the shoulder. It didn't actually go into limp mode.
I let it sit a few minutes, talked it over with the wife and decided to call for a tow. After talking to the tow truck driver who said he would be an hour because he had to go find a bigger truck, I decided to see what I could do while I wait. I fired it back up and the fuel level dropped to below 1/8 and I was now showing 33 miles to EMPTY. I was parked on a hill with the back end up. I had backed the truck into a space to make it easier for the tow truck driver. I let it run a minute, checked for leaks and it seemed to run fine with no studdering or additional warning lights.
CEL was on but no new warnings. I put in my code reader and pulled the P0087. Just one code. I revved it a bit to see if there were any issues. It seemed fine so I decided to try my luck. I started driving towards home with the intention to stop at the first diesel station to fill up. Truck ran fine. After two minutes of driving gently, heart racing, my fuel level came back up and it now read 88 miles to EMPTY. I drove 11 miles to the nearest station and filled up. No issues. I shut it down. I fired it back up. Still no issues so with a full tank, I drove home the remaining 30 miles without issue.
Planning to take it in to the dealer Monday to get it checked. Could this be from an air pocked due to low fuel level and hilly terrain? Is my new pump dying already? Is there something else going on inside the tank or elsewhere?
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I recently had my fuel gauge stuck on full and at around the same time, my left rear brake light doesn't work. I do have LED brake lights in the rear so I am not sure if that changes anything. I thinking something with a ground or is it possible that these aren't even related.
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The fuel gauge sender quit the other day so Im replacing the pump assembly. I believe in replacing fuel and ignition related parts with factory equipment. So I was going to get a Ford Motorcraft pump, but my wife checked for one through her work(local parts store). The counter guy found one that said original equipment, called them and was told "It is the same pump that gets installed on the assembly line". Well it came in today and its a Delphi. I was expecting a Ford pump. I associate Delphi with GM and I know GM pumps go out all the time. I know Ford pumps go out too, but I know several people with GMs that have replaced pumps multiple times within 100000 miles. Is Delphi worth taking a chance on?
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Purchased 2011 3 weeks ago. Due to not paying attention, put gas in diesel. Had tank dropped and drained but after reassembly, fuel gauge inop. When turn ignition switch on, get normal sweep of all dash gauges but fuel gauge does not read. 2nd tech says sender okay, must be gauge. Dealer ssays if it sweeps, it isn't the gauge. 011 F250 6.7L.....
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So I just replaced the low pressure fuel pump on my 14 6.7 and it seems to be running as good as it was before. I need to get an aftermarket fuel filter setup for my truck. So what are you using, why did you pick that particular system and is it working, does it really work for taking out water and other contaminates? These fuel systems don't seem to be up to par in filtering modern day fuel, I need peace of mind.
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I am installing a fuel pressure gauge into my 02 7.3 I went to the thread the sensor into the plug hole on the fuel filter housing and it wasn't threaded, turns out the sensor thread is slightly smaller and a different thread ... The directions say to install it into the filter housing or the lift pump ... So I'm assuming I have to go the lift pump direction of installing it but where the lift pump is or how to install the sensor into it while not throwing a code or causin problems ... A step by step and even pictures.
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My 2005 is doing strange things. The fuel gauge is always incorrect. I have done the following:
1. Replaced fuel level sensor.
2. Inspected and tested wiring from the firewall to the tank.
There are no codes present and the fuel % listed in torque is always correct. The gauge sometimes reads 1/2 above full, nearly all of the time it's above the 3/4 tank mark. I have an android head unit that I am using to gauge fuel level right now. I believe the cluster is bad.
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I just had headgaskets (oem) studs, egr delete,oil cooler done on my 06 plus water pump cause the gasket blew. I have a sct livewire hooked up monitoring everything and tonight i noticed that the eot and ect's were way off. fully warmed up and rolling 65 Anywhere from 40*-50* out it was eot-156 and ect-172. Degas bottle was at the normal level.
I am also having issues with the fuel gauge. Every now and then the gauge will go to E and the miles to E will display ---. Turn the truck off and back on it works again. I am half assuming its the plug on the sending unit or the sending unit itself.
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I finally received all the parts needed for installing my fuel pressure gauge, but I am wondering if I am going to need a schrader valve on my fuel pressure line going to the sending unit, or if I am going to be safe with just doing a 6 time cycle of the fuel pump like we do when we change out the fuel filters. Seems like that should work for getting the air out of the fuel lines, same concept I would think.
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After filling up today at the pump, the low fuel message is still coming on. My gauge is correct though. How to clear the message. I keep on trying to reset it with the reset button but it doesn't go away.
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I am a new diesel owner. I bought a 2014 F250 about 9 months ago. Three times in the last 50k miles I have heard the fuel pump near the tank making noise. Twice, while making the high pitched noise I have gotten a low fuel pressure warning and reduced engine power.
The first time, I left the truck with the dealer for two days while a tech drove it around. everything checked out fine. (30k miles)
The second time I heard the noise i did not get the low fuel pressure warning. (40k miles)
Today, I heard the noise and got the lower fuel pressure warning just before the truck stalled out. Lucky for me, I was near home. After a minute the truck start and I nursed it the last mile or two. (56k miles)
The tow truck just picked it up and is off to the dealer. It sound to me like the low pressure transfer pump is bad or going bad.
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01 7.3. Cranks, won't start. Tank was at 1/4 but is full now. The lift pump runs, I can feel and hear that the motor is spinning when I cycle the key. I removed the fuel filter and cycled the key and get no fuel into the bowl. It looks like the lines are stainless from the pump to the tank so I doubt it is sucking air. I pressurized the tank with a shop vac and I get fuel coming into the filter housing. Am I missing something obvious? I have never seen an electric pump that would run and not pump fuel. I removed the suction line at the pump and don't feel any suction there.
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Working on a 2015 f-550 with a 6.7 power stroke. Damaged the wiring harness and fuel gauge not working now. Where could I find a wiring diagram? The low fuel is now causing it to not regen. We have continuity through the wires and they have been repaired but gauge still does not work. Currently now power to fuel gauge sender?
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I just got a 03 f250 cc lariat with the 6.0, the truck sat for a month and a half before I picked it up, I got in started and the fuel gauge showed over half and the miles to empty was accurate and the temp was as well, about half way home the gauge dropped below empty and the fuel light turned on, then the miles to empty went up to 455 and the temp showed 67 when it was 92 out. I have read other post with these problems but no one has a solution, people have recommended techron for the fuel sender, but techron is not recommended for diesel...
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I've recently brought her back to life after a couple months of delayed loving due unforeseen reasons. And now the fuel gauge is completely under the E marking! I'm fairly smart and have looked some things up from other forums just trying to get a one on one response of that makes sense. "If were in the military you will understand" please break it down Barney style!! Not saying I'm dumb just want a good understanding
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Well, I was cruising down the highway @70MPH and notice the fuel pressure gauge dropped down to 50 then back to 65. Kept watching the gauge and it would swing back and forth from 55 to 65.
Got off the highway. Nailed it at the light and watched the gauge drop to 53 and swing back to 65. Fuel pressure is not steady either. It swings back and forth from 52 to 65. Thinking the pump is on its her last legs? Truck got 194K on her.
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2005 F250 Superduty Crewcab 4x4 6.0L diesel/auto
Wife drove the truck before me and bunched the floor mat under the pedals. I didn't notice the mat issue when I drove the truck today. I accelerated fully after doing a left turn onto a busy highway. The motor spun up hard with the accelerator floored but because of the mats, the pedal stuck all the way down. I was approaching stopped traffic while under full acceleration and I shut the engine off and pulled over to the shoulder all while braking hard ( it was a hell of a ride!). I freed the pedal and restarted the engine.
Now, despite a bit less than 1/2 tank of fuel (I have the 38 gal tank), the dash readout was showing "Low Fuel", the gas gauge was below E and the engine was running like it was running out of fuel. I turned the engine off again and left it off for 1/2 hour before restarting it but the gauge and engine still behaved the same. As I drove to the nearest diesel station, the engine was not running "right". Of course the station I pulled into had 1 diesel pump and the pump was broken.
Because I thought I might actually be out of fuel, an understanding stranger took me to the store to buy some gas cans and then to another station to get 6 gallons of fuel. I got back to the truck and added the 6 gallons of fuel. When I turned the key on, the fuel gauge immediately came up to 1/2 tank. I then drove to that other station and added another 15 gallons of fuel to fill it. This confirmed that I had about 18 gallons of fuel in truck when the "Low fuel" warning occurred.
So, what the heck was going on with the fuel gauge? I am sure the "Low Fuel" warning is tied directly to the gauge but why was the gauge reading low? Is it possible that the "Key-off" while under full acceleration followed by hard braking had confused the ECU? I am just trying to figure out if I have a fuel sender problem or a confused computer that corrected itself. Until this incident, the fuel gauge has never been a problem but the wife messing up the mats has been an issue!
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Couple of years ago I installed a fuel pressure gauge. I wrapped the fittings with teflon tape. Well within about a year it started leaking. So I shopped around and used Permatex Permashield fuel resistant sealant on the fittings. It says diesel resistant on the package. Couple months later leaking again. So I take it apart again, clean every fitting and follow the instructions to the letter. Well its leaking again. What will resist diesel fuel under 55 psi pressure. All the fittings seem to be pipe thread.
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So I'm stumped I have an 04 6 liter and I have no power to my fuel pump. My fuse under my Dash is good which is a 20 amp fuse which is number 40. My inertia switch is not tripped and I have power to it however my fuel pump does not have power what else could it be? Is there a relay somewhere else?
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2004 F-250 4x4 6.0 diesel 120,000 miles, only modification is egr delete, i had a loss of power, pulled over truck died, replaced both fuel filters, found pump was not running, checked and had power to pump plug, replaced fuel pump, now no power to fuel pump, have power to fuse (40 i think) have power to inertia switch both sides, but no power to plug at pump. ran jumper wire to battery to get truck home. I need to know if there is any other component between inertia switch and pump, and or test points, as i think i must have a broken wire.
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