Ford 7.3L Power Stroke (1999-2003) :: Out Of Fuel 5 Second Warning


Oct 3, 2012

Well, like the title says, my fuel was a little low. It was the first time I had gone near the red zone.

I was planning to drain the tank so I could remove it for some mods., so I thought I would run it down to 3-4 gallons remaining. I usually fill at 1/4 tank and it takes about 18 gallons, so I thought I had a LOT of fuel remaining when the gauge was between 1/4 and the reserve zone.

I happened to see the low fuel light come on and within 5-10 seconds I was losing power and coasting to a to the side of the road. "Next" time I will be sure to carry a can of fuel.

I recently purchased a AAA membership, so I decided to utilize it for the first time. It took over an hour for my tow to arrive and hundreds of cars and trucks went by while I was waiting for my tow truck (roll back because of 4wd). I'm glad I had the AAA.

I thought I read somewhere that there was supposed to be about 5 gallons of fuel remaining when the low fuel light comes on.

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Ford 7.3L Power Stroke (1999-2003) :: How To Turn Off Water In Fuel Light Warning

I have a 2001 F250 (Platinum Edition). I purchased about a year ago. The water in fuel light came on. I ran an additive to remove water and changed the fuel filter several times. Light still on. How to turn it off? I missing something? Only fuel filter I see sits on top of engine...

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Ford 7.3L Power Stroke (1999-2003) :: Fuel Filter Bowl Drain Valve Replaced - Emission System Warning Light

I just changed the drain valve on the fuel filter bowl. All went well and no more leak, but now I am getting an "emission system" warning light.

After I replaced the valve, I filled the fuel bowl with diesel fuel. Was there any other priming that needed to be done (if any)? What the emission system warning light may mean?

2002 F250 7.3L 4x4.

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Ford 7.3L Power Stroke (1999-2003) :: Ran Out Of Fuel With 1/8 Tank And No Low Fuel Light?

So my 7.3 started sputtering and lost power, died on the side of the road. I wasn't far from home put about 8 gallon of diesel in the tank with a couple of fuel jugs and it fired right up.

Gauge was reading 1/8 of a tank and low fuel light did not come on. (low fuel light comes on when you start) Gauge came up to about 1/2 after putting fuel in.

What happened? Gauge was always reliable and low fuel light always did work. Only work done to fuel system was had new tank straps put on a couple of months ago.

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Ford 7.3L Power Stroke (1999-2003) :: Cranks But Won't Start - Fuel Pump Not Pumping Fuel

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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Ford 6.7L Power Stroke Diesel :: Whining Sound / Low Fuel Pressure And Reduced Power Warning - Fuel Pump Just Died

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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Ford 7.3L Power Stroke (1999-2003) :: No Power / Zero Voltage To Fuel Pump

2003 F-350 - 7.3. With the key in the on position there is zero voltage to the fuel pump. Fuel pump fuse is good. I traced the red with black tracer wire from the pump up through the firewall and to the safety inertia switch. The switch has continuity so it's OK. Then from the safety switch I traced the green with yellow tracer wire to a fuse block plug connector. Then I checked continuity from that connector out to the #40 fuel pump fuse and it's open.

So I then i checked from the fuel pump fuse to all the back connections on the back of the fuse block and there was no continuity to any of them. So I removed the back cover off the fuse block to expose any issues. I found two board mounted relays. Now, from the fuse I get continuity to one of the relay connections. So did Ford hide the fuel pump relay and make it non replaceable? Also if this is the pump relay then what circuit energizes it? I need to make sure before I replace the fuse block.

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Ford 7.3L Power Stroke (1999-2003) :: No Power To Fuel Pump / Fuse 30?

I have a 2003 F250 and dont have power at fuel pump, or fuse #30. I put power directly to fuel pump and it worked and truck fired right up.

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Ford 7.3L Power Stroke (1999-2003) :: Low Power - Fuel Pressure?

Low power on my 2003 7.3 F350. The truck runs fine but I can tell it is low on power (seat of the pants). I figured it to be fuel related so changed fuel filter and oil with no change. When that didn't work I installed a fuel guage and this what I found. Key on no start fuel pressure 45 psi. Start truck the pressure will get up to 61psi. Under a load it will drop down to the low 30s. I have dropped the tank mixing chamber screens clean and so was the tank. Changed fuel pump and now under a load it drops to the high 30s. Does this sound like the fuel pressure regulator is leaking by and causing low pressure under a load? Truck is stock besides superchips 1705 programer.

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Ford 7.3L Power Stroke (1999-2003) :: 2002 F250 - No Power Getting To Fuel Pump

There was no power getting to the fuel pump on my 2002 Ford F250 73 diesel traced it back to the inertia switch no power in or out but I'm getting power at the fuel pump relay put the code scanner to the PCM and no communication....

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Ford 7.3L Power Stroke (1999-2003) :: 1999 - Cranks But Won't Start - Water In Fuel Light On?

My 99 F350 cranks, but won't start, and the "water in fuel" light on the dash stays on while cranking. I have never paid close attention to it in the past. Is it supposed to be on while cranking?

I drained the water from the yellow lever located on top of the engine, and tried to start it. The light went off for the first few cranks, but again the truck still will not start.

I just came from a 10 hours round trip to NC. I filled the truck up two times from gas stations on the way. Is it possible that the fuel is bad? I drove on the same fuel almost 3/4 of this tank and now at the last 1/4 I am having this issue.

A little update:

I took the top of the fuel bowl off to see what the filter looks like, and it is nasty and completely black. I could not tell if the fuel in the bowl contained any water, but it looks greenish and uniform, no the obvious separation that happens when you mix water and oil.

Could the fuel filter be the problem?

A little history about the truck. It's always hard to start if cold and not plugged in overnight. I know it's the glow plugs relay, so I just keep it plugged in all the time until I get a chance to fix it.

IDM was acting up shutting off half of my engine, but I took it off, cleaned it, plugged it back in and it has been working fine for over 2 months.

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Ford 7.3L Power Stroke (1999-2003) :: Truck Started Losing Power Then Slowly Die / Fuel Pump Bad?

I was driving my truck then all sudden truck started losing power then slowly died. I restarted it, it was a lil shacky then died again. Iunscrewed the fuel filter and looked in the housing and there was lil fuel in bowl i turned the key to on position and bowl did not fill with fuel looked as if it were shooting some bubbles up(air) could it be outta of fuel???

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Ford 7.3L Power Stroke (1999-2003) :: Loosing Power - No CEL Codes - Half Of Engine Floods With Fuel

What I know the truck was running normal except if I stomped the gas pedal and let off it would not respond again until I shut off keys and restarted this was a month ago now the truck sounds like it has a lope tune.

When I hit the gas pedal it blows white smoke and if I press the gas while idling or driving it floods out I did the spray bottle test on manifolds the drivers side was plenty hot the passenger side is cold you literally can touch while it's running.

The truck sounds like it's only running on 4 cylinders it has gotten so bad I parked the truck. Also this truck always had poor mpg 8 to be exact city hwy and towing nothing changed the mpg at all it used to blow out wet soot that would fall down on the truck and anyone standing near it.

Mods unknown pcu program 4in straight pipe with 12in stack harpoon mod in tank

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Ford 7.3L Power Stroke (1999-2003) :: White Smoke Blowing / Smells Like Fuel And Loses All Power

I am a mechanic and tow operator running a late 99 f350 7.3 6 speed cab and chassis wrecker. This truck has had a hard life and has been neglected for quite some time, and now has become my baby/headache. Truck starts great, idles nice, and will run great for about 5 minutes until it starts billowing white smoke that smells like fuel and loses all power. If you continue to drive it it will die. Sounds like it's dropping cylinders and will barely idle. If you stop for 5 minutes or so and let it idle it will smooth back out and will run great again for another minute or two, then right back to stumbling.

Using torque app, hpop pressure looks good when it's running well. Peaks at 3k, IPR maintaining 30-40% max. As soon as it stumbles you can see the hpop drop to 5-600 and the IPR will climb to 65%. Let it idea bit and they go back to normal, and stay good until it stumbles again.

Ive changed the fuel pump, ICP,rebuilt FPR, change fuel filter, pulled and cleaned the fuel tank (metal tank, no delamination, looks perfect inside). Pickup screen looked good. Cleaned the IPR, cleaned the hpop reservoir, there was no screen inside. Checked voltage at fuel pump, 11.78 across the pump with it running. Pulled valve covers, no noticeable leaks around injectors. Injectors have less than 5k miles. Remans with 100% larger tips.

To me it seems like the lpop is not keeping up with the hpop under load, starving it until you idle and let it catch up. Could it still be bad injector orings? Bad lpop? Something I'm not thinking of?

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Ford 7.3L Power Stroke (1999-2003) :: 2000 F350 Quit Running Without Warning

I have a 2000 F350 super duty 7.3 turbo diesel. It has 189 000 kms or about 150 000 miles. I have had problems all winter with my engine. I can drive it for days and then without warning she quits. She will not start right away but sometimes, if I drain the fuel filter and try her she fires right up and runs for about 10 minutes then quits again. If I wait a few hours, while waiting for a tow truck, she may start and again run for days but she may not...

I have a good friend who is a mechanic, and a cracker jack at it, but he is dumfounded as to what the problem is. She does not show any codes and my buddy has a computer analyser.

So far he has done what others have suggested including changing, Crank Sensor, IPR sensor, ICP sensor, new Lift pump, Fuel pressure regulator, and removed emptied and cleaned the fuel tank and suction lines.

All this to no success. Now we have run out of thoughts. All week I drove her without problem till yesterday when she quit again. There is no set time, weather condition or anything to suggest a problem so I reach out for a solution. The truck is in mint condition and very, very, far from being condemned but this is frustrating.

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Ford 7.3L Power Stroke (1999-2003) :: Quit Just Like Ran Out Of Fuel

Thursday coming home my 7.3 quit just like ran out of fuel, changed fuel filter still no run. Changed hpfp engine turns over no run. Temp 70 in my garage, batteries good, one small squirt either engine runs great, No check engine light, nothing. I need my truck..

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Ford 7.3L Power Stroke (1999-2003) :: Raw Fuel Smell In Cab

I'm checking all places to look for a fuel leak. I park on a concrete slab, with no drips.

I have already mopped up as much fluid from the valley from recently having all of the injectors replaced. I still need to clean it further with simple green, and stuff white paper towel in the valley so I can really know if there is a leak.

3 years ago I replaced the water drain valve o rings, but I suppose they could have gone bad again.

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Ford 7.3L Power Stroke (1999-2003) :: Big Fuel Leak?

Brothers of fte. I reach out. Tonight it appears I had a fuel bomb under the hood.

I've been chasing a fuel leak. Replaced fuel drain orings but one screw seemed to not snug up. Also the plastic was so brittle I couldn't replace the inner oring. Installed new valve worked great. A week later noticed new slow drips. Replaced fuel filter. Again good for two weeks.

Tonight pulled into the driveway hopped out immediately smelled diesel. Steaming from under hood. Popped the hood and everything was wet. Moved her to the street and it clattered like I was running out of fuel. Still half a tank though. Hosed of the drive. Popped hood again fired it up easily. Started fine. No noticeable leak. But everything is wet from fuel. Insulation on hood was saturated. When I open the hood fuel ran out of the insulation into the air intake. Batteries were wet!

Alright what gives? Do I have to be under load to see this leak?

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Ford 7.3L Power Stroke (1999-2003) :: Tach Quit Working - Warning Lights Staying

Well today the tach was not working at all and the check gauge, check engine and glow plug lights are staying on. Truck runs and starts great, everything else seems to work except the trans temp gauge. Did a search for the GEM and could not find anything that indicates the GEM controls the tach and warning lights.

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Ford 7.3L Power Stroke (1999-2003) :: Relay For Fuel Pump Keeps Going Bad

The relay for the fuel pump keeps going bad. Is this a sign my fuel pump is going ? I just replaced my 2nd relay ( lasted about 1 week ) 1st lasted 16 years. Or is there another issue to look at ?

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Ford 7.3L Power Stroke (1999-2003) :: Truck Died Like It Was Out Of Fuel

Jumped in the 1999 cc dually 7.3 6 spd superduty.

Just rebuilt the rear locker ( FYI if you use new clutches Do NOT add clutches, it is TOO tight now) and rest of rear end.

Full of fuel, drove it half the day only minor issues. Cruise, Horn, 4x4, suddenly would not work, but it was running and driving like it always has.

Around lunch while at 55 mph it shuttered hard like it had stalled for a second. I stopped and checked the oil. It was just above the add but I topped it off and went one. The further I went the more it happened.

So I decided to head back to shop and switch it with the car i had left there. It finally died like it was out of fuel.

next day I take 5 gallons of fuel and put in it ( maybe the gauge is acting up like the horn, cruise and 4x4?), it brings it from 3/4 plus to full mark, so gauge is working accurate. I also keep a fuel log that says i went 100 miles since last fill up.

Get in, it fires right up. I leave it sit and idle while i park the car. About 5 minutes and it dies. It will start run a few seconds and die again. The more I try it the shorter time it runs.

Finally does not want it start at all. I read about disconnecting plug on inside left front of valve cover , that had not effect. Crawled under, and frame mounted fuel pump is running.

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