Ford Super Duty (1999-2016) :: F450 Would Not Stay Running Almost As If Out Of Fuel When Cold
Feb 11, 2014
Got a 99 F450 7.3 with 190k miles, started acting sluggish. When cold, it wouldn't stay running, almost as if out of fuel. Would stall out when you pressed and released the accelerator but would idle fine. Now, it won't even stay running. Still acts like it's out of fuel. Changed the air filter, fuel filter, and added injector cleaner and conditioner. What else could it be? after warming up when shifting gears and letting off throttle it stalls and when restarted lets off blueish white smoke.
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My 99 f450 7.3 runs bad on first start of day. I checked the codes 3 codes p0475, p0470 and p1247. Now here is what I tried I plugged it in over night and it will start and run as should the next morning with out side temp 47. Drove the truck late yesterday evening didn't plug up tried it this morning with a outside temp of 47 truck starts but missing and like of power. My problem seems to be temp related. Will low boost pressure cause this problem what do I need to do?
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I have an 02 F450 with a dump bed an just under 45,000 miles (was barley used by the first owner). This maybe unrelated to my problem but is worth mentioning. This past week I noticed a small puddle where I had previously parked at a customers house so I checked the oil. I was about 2 quarts low. I followed the oil trail up and found a pool in the valley. One of the high pressure lines were loose and the seal was chewed up so I replaced it and tightened it. No more oil leak.
Now my new problem. Two days later, after about 45 minutes on the interstate driving about 75 mph the truck started to rapidly lose power as if it was running out of fuel. I heard a loud ticking sound coming from the engine and the more I tried to accelerate the worse it got. I pulled over and the truck stalled. I thought that maybe my fuel gauge had crapped the bed on me because it still read a little over 1/4 tank. I called a buddy and got more deisal in it and it started right up. We'll after about 5 minutes of 60 mph it started to happen again. So to fast forward... I opened up the tank and found the the strainer had crumbled in the bottom of the tank.
So I cleaned out the screens in the sending unit and replaced the strainer, replaced the fuel filter, and reverse blew out the lines. I read about checking the hpop reservoir for oil and it is present. So to sum up, as long as I stay under 60mph or so I can get about 5 minutes of run time before the truck starts to stutter and stumble. If I shut it off for about 5minutes I can go back up to 60 again but it the cycle continues. 5 on and 5 off. If I start the truck after say 30 seconds after shutting it off it sounds like it's going to die and has no power at all. I have worked on a lot of vehicles but none with anything like this and this is my first deisal. What do I do to get this beast back to normal?
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I have a 2003 F450 PSD which won't start cold. I leave it plugged in overnight and it won't start in the morning without starting fluid. I spray a little while cranking and it turns right over. It runs really rough for a few minutes but as it gets hotter it settles down and runs like it's brand new.
Once at operating temp it will start up again no problem. I changed the GPs, the GPR, the valve cover gaskets and GP harnesses, 2 brand new batteries, oil change, fuel filter, air filter. I can't imagine what the problem can be.
I know the icp sensor is bad, I checked it and it has oil in it, but it still won't start unplugged so that isn't the main problem. I noticed it has a minor oil leak, not sure of where it's coming from, but it seems to leak when the truck settles.
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My issue is not with the truck starting its with it staying running. I had plugged in all the night prior and all day while at work. When my shift was over went out started fine let it run for about 20 minutes and left to make my way home. During the trip it ran fine for about 1/2 a mile and then it started idling really rough at a stop light went to go threw the light and it as though I had left it out all night with plugging it in. I went to turn on a side street because this situation was not going to end well and it died trying to turn. It would not start back up I was able to get a jump and made another 1/4 of a mile and it died right in front of my house. I replaced both the batteries this morning and it fired right up lasted about a minute and then died again. All the gauge read fine, oil level is good, and the injectors were replaced 2 years ago.
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I Have a 2002 F 250 That I recently changed the fuel pump. and now I'm having a tail light problem. when i start the truck, my tail lights and plate lights comes on (dim). if i turn my head lights on the truck stalls out. if i step on the brake or put the truck in reverse it stalls out. if i put it in drive it runs just fine. i checked my fuses and relays and the problem is still there even when the relay and fuse for the lights are out. when i turn the truck off all the light go out.
can't seem to find any info on this problem anywhere.
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This last April I was towing my trailer back from camping approx 125 miles when I detected a loss of power and a slight miss. I managed to make it home. It wasn't until I made it home that the engine finally started coding. Miss on start, a couple of cylinders missing and output shaft speed sensor circuit failure. So naturally, I decided to do what I felt needed done anyways, change all coils and plugs. Oddly the problem got worse to the point where I almost didn't make it home after test driving it, it kept stalling out and was difficult to keep running.
After some research and advice from others, I started replacing some components; MAF sensor,IAC valve, output shaft speed sensor. Nothing. In fact now the truck wont move, I start it up it idles a little rough, but then I put it into gear and with in seconds she shuts her self down. I've replaced the fuel filter, checked the fuel pressure and it is in specs. I've now had it towed to two mechanics neither of which have any solution. They've put expensive computers up to it and still nothing. I really do not know what to do at this point. Lastly the only code that continues to come up is P0720, output shaft speed sensor circuit failure, I really miss my truck!
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2002 7.3 running rough.
This is my symptoms : On cold start ups engine runs rough. Idling it knocks worse than normal on the road she runs really rough. If I get on here she smooths out ( but still runs rough a bit) but normal driving at between 1200 -2000 rpm she runs so rough it shakes the whole truck. It will do this until she gets up to operating temp & then it goes away. The more she warms up the better she runs.
Once up to temp she will run perfectly. The colder it is outside the worse it is & the longer it takes for it to go away. I have replaced the valve cover gaskers and new harnesses, new glow plugs. Still same problems. I have AE and one time it gave me a #2 cylinder code. have not been able to repete this code. What to check next.
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I have a 2007 f-350 with the 5.4. The fuel pump is not running, have voltage at the inertia switch but none at the pump. Where the pump driver module is located at?
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I have a 1999 F450 that was bought new as a cab and chassis. The truck belonged to my dad who passed away two years ago and now I have it. I am wondering if it has 4.30 or 4.88 gears. The rear end is huge! It has an aluminum cover with cooling fins on it, not sure if they both had that or not. I looked online and I think it said all cab and chassis had 4.88?
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So, I have a 2007 f250 with the 6.0. When she's cold she starts fine but runs rough like she has a miss. When she warms up the miss goes away and it runs pretty good. But if I shut it off it won't start for about an hour or so.
ICP sensor has been replaced.
FICM is putting out 50v
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I have a 2001 f350 v10 that has been giving me fits. has 88000 miles. cranks and starts when cold or fuel pressure is below 40 psi. SES light will flash when it stalls and fuel pressure goes from 30 while running to 40 and the fuel pump runs continuously when this happens and truck will not start. replaced crank sensor and fuel pump was changed about two months ago. if I relieve fuel pressure it will start and run for short time then stall and fuel pump stays on. all fuses are good. I am at a loss.
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Purchased new 2016 450 platinum. Has less than 800 miles on it and has a terrible vibration between 70-80 mph... Already have taken to dealer who stated there was a wheel out of balance and that they fixed the issue. But still present.
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I have a 99 F450. I have an ABS light on. No codes (at least not that my code reader can pickup), but I am also not having any issues. Brakes work fine. What to swap out or where to look?
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Can an f-450 with a blown 6.4 diesel received an transplant from an f-350 V-10.
How much would need to go over from the f-350 to f-450?
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I have a 1999 F450 Diesel dump truck. Automatic. The problem that I have is that the truck will drive VERY SLOWLY while the rps go up.
You can hear the engine revving up, and a strong air sound when doing so (do not know if intake or exhaust, but its like a strong wind sound. And not like a hiss, so I do not think its a vacuum leak).
The transmission goes through gears fine, but it does the rev up thing through every gear. So I am wondering if something like the torque converter might be broken or slipping.
For example, if you go with the loaded truck up a hill, you have to really push it to keep any type of speed. Or when you get off a red light.
When I bought it used, I thought that it might have a really short final gear. But that would not explain the high RPM and no push.....
No codes at all.
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It's a 2004 F450 super duty, no power steering. The pump seems to function, no pump whine. I was told that it may be the steering gear box it's self.
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I've got a 2004 f450 6.0 diesel. This thing will start and run great when it's cold. Then when it gets to operating temp, around 190, it will shut down. This is getting worse and worse.
A little history, it was doing this for awhile and a had a few other issues before this. Puking antifreeze, stiction issues, and bad exhaust manifold. Since it wasn't running great I figured why not pull that cab and take care of these issues.
As of last week she got new head gaskets, new exhaust manifold, new injectors, updated standpipes, updated dummy plugs, new o rings on hpop (yellow on the bottom), and a new pipe to the oil pump. I have the old style it's not the stc fitting.
All that work, it still stalls when warm. I monitor with a scan gauge 2. ( Big diesel tech Ron's fan) ...
First thing, give here two second crank start right up, runs better then ever. Gets to operating temp, rev it up, then stalls. Ipc is at 85% ipr gets up to 180 psi.
Unplug ipc, shows 765 psi on the ipr still no start. Put shop air to her and I can't hear any leaks ( probably 15 mins or so).
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I have a F450 that I bought a few months ago and have been having trouble with Fuse location 35 blowing. When I purchased the truck the 4x4, tow/haul, and reverse sensing system worked because I had to use it loading and unloading my boat this fall. Since then the snow fell and when I tried to put it into 4x4 I noticed it would not. I checked the passenger compartment fuse (loc. 35) and it was blown.
So I figured it was an easy fix, changed fuse, and it immediately blew again, and again. So then I started checking components related to fuse 35. First i checked the tow/haul switch in the shift lever and thought it was that, so I replaced it, and it still blew fuses. Next, I unplugged the reverse sensing systems and still blew the fuse. Next, I turned my attention to the transfer case shift motor. I replaced it and still blew fuse. So at this point I am stumped.
It is probably worth mentioning that when I replace the fuse initially and turn the key over, all systems work. I can switch the dash switch to 4x4 and it will shift, also the illumination light on the dash comes on. I can also toggle the tow/haul switch and the illumination light on the dash comes on as well. The reverse sensing system also works as well and the light in the switch works as well.
Now and important thing to note is that it seems to hold the fuse for a minute or more with the engine off/ key on, when I start the engine, it works briefly but then the fuse blows. I am not a service tech. by any means but am very comfortable under the hood and have a fairly good understanding of electrical components and their operation. It seems to me that somewhere in the circuit that there is a short to ground or a faulty component(module) or something completely different.
The fact that it takes a minute or so to blow the fuse as compared to an immediate blow when the key is cycled to power on. I would like to fix this myself as with anything I do, I like to educate myself through diagnosis/repair. The last piece of information with mentioning is that before I purchased the truck(30,000 miles ago) it had a factory reman engine installed at a ford dealer. If worse comes to worse I will have to take it to a Ford dealership for service but would like to keep it in house if I could!
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I tried to take my tailgate off my 08 F-450 today.
Did it the same as every tailgate Ive taken off in the last 20 years...........it wouldn't come.
Is there a trick to it?
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Im working on a 03 f-450 that has a front end vibration, it starts when you hit 25 mph and its a humming / vibration that seems more to the passenger side than the drivers side. You can also hear it decrease when you come down in speed and it dissappears below 25 mph. Its a 2003 F-450 CC 4x4 DRW with the v-10.
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