Ford Super Duty (1999-2016) :: 2003 F250 5.4 - Starts Cutting Out When Under Load
Mar 4, 2016
About 20 miles into it, and it starts cutting out on me under load, over about 1/4 throttle. I baby it a ways further, and park at a wal-mart. Idles fine, but once again, after 1/4 runs like crap, acts like it's back firing through the intake spit and sputtering. Have the wife come pick me up since I was heading to work. Decided to shut it off, and restart, and it acts like its never had a problem.
Was messing with it today, and let it warm up in the driveway. Once it got hot, same story good 1/4 throttle, past that, not so much. Shut it off, started it back up and drove it to see if there's any codes at vatozone. Drove good (laying into the throttle) for about 2-3 minutes, back to same behavior. Hooked up code reader, no current codes, and no historic codes. Although I did notice (actually since I bought the truck) that the check engine light never comes on, even at initial start up. Looking at my spare cluster, it's an l.e.d. So no bulb out I guess unless the led is bad. Truck has around 130,000 miles on it. Everything is stock.
I'm leaning toward a fuel pump, a clogged cat, or a fuel pump relay or cutoff switch problem.. It doesn't have any other issues than that, and has been a good truck for the 10k miles I've owned it... 2003 F250 5.4...
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While driving down the road the truck will just cut off. We wait a few mins and start it again can drive a few miles and it cuts off again. we have replaced the ignition coils and it is still doing this. No codes are coming up to get any idea what it can be?
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I have a 2003 F250 with the 5.4 and I believe I am having a fuel delivery issue. I took out yesterday and stopped to get a drink at the gas station, came back out and the truck wouldn't start long enough to idle. It would start, barely bounce off zero rpms and die out. I checked the fuel interia switch and it was down. I tried turning the key back and forth thinking it might reset the fuel pump or something and that didnt work. I get the truck towed home and couldn't get it to start last night. I go out this morning and it starts, come home from work and now it won't. This happened about 2 years ago and I never did anything about it, but it took 2 years for it to happen again.
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I have a 2003, F250 SD, 5.0 with a weird problem no one can figure out. Now it doesn't matter what time of the year it is but after the truck sits a few days when I go to start it up it run roughs. Sometimes for a few seconds sometimes a few minutes then it "straightens" itself out. Recently it took almost a day to fix itself. No engine codes, no other symptoms.
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I replaced the head gaskets on a 2006 F250 6.0 Diesel, put it all back together and started it up. It ran great for a lil bit, then it started cutting out. It did this for about an hour then I killed it and it took a little bit to restart it, spinning over and over to get it to run, this took place several times. The engine died and now it will not start. I keep getting codes P2284 and P2290. What could be causing this problem??
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My truck is a 2003 f250 / 2wd automatic, 7.3 powerstroke, 284000 well maintained miles.
Just last week I sprug a large oil leak and had to replace the hoop outlet o rings..problem solved. This week I can drive 15-20 miles on the freeway and the truck starts to act like ota running out of fuel. Bogs down to 40mph then starts missing. I pull over, and when revving I have un burnt fuel and oil smoking out of my tailpipe. I let it sit for 5-10 minutes and it will be fine for the rest of the drive and this happens intermittently, there is no pattern.
The truck has a ton of power, starts great hot or cold. I did a ton of research and found a IPR could possibly cause this, as could plugged screens in the fuel pickup. Then I read about all the injector harness issues but I don't think that I my issue.
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On my way home a couple days ago, my navigation/stereo display started cutting out, and I noticed it only did it when putting additional current load on the system (windows, lights, etc...). I shut the truck off and there wasn't enough juice to start it.
I test at the battery and it is down to 11.4V. I was able to jump the truck and get it going. While running, I only have 11.1V at the battery. I assume this means that my Alternator has taken a dive.
I'm only posting to see if there is something else that I should considering as well... like a voltage regulator or something, but maybe that is built into the alternator?
I'm planning on hitting napa this afternoon to pick up an alternator unless someone tells me otherwise. I'm also interested in opinions on the best alternator to get and/or upgrade.
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I have a 99 f250 that seems like it has a bad coil, under a load it starts surging or bumping ( like it has in the past and I found a bad coil), I went through and unplugged each coil one by one while idling, couldn't find a bad one, so I bought a new coil and went through and rotated the coils, nothing worked, no check engine lights on.
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Just bought a 1999 7.3 f250 w/71000 miles and took it to a diesel guy and under load he said that the whistling was normal..is this correct?
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In my 03 F-350 my radio is cutting on and off . Have figured out problem is in dash cluster. Which wire do I use to run radio to battery and bypass the cluster???
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I have a 2001 Ford F-250 5.4L V8. 117,000 miles. The problem I have been relentlessly trying to diagnose is a slight bucking that occurs under load when the truck is in overdrive. When the truck bumps up to higher RPM's it is fine but when it is around 1500-1700 RPMs on the highway it does a small buck like I'm hitting a bump in the road. I know there are many threads on this but none of them have gotten me any closer to a resolution. It also seems to have a bit of power loss when accelerating. Things I have done so far.
-Spark plugs and COP replaced about 1000 miles ago
-New fuel filter
-Cleaned MAF sensor
-Cleaned throttle body
-New PCV
-Seafoam treatment in gas and through brake booster.
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My F250 6.4, 3.73 Crew Cab Short bed vibrates when accelerating from a stop with my 5th wheel on. The 5th wheel weighs 12K. It is a medium to high frequency vibration that is felt throughout the entire truck. It continues through the shift into 2nd (TorqueShift Tranny). The harder you accelerate the more you feel it.
It does not occur if truck is unloaded and you accelerate at full throttle. Is this normal or should I get it looked at?
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I have a 2002 F250 CCSB Lariat 4x4 with the Triton V10, I'm up to 232,000 miles so far and fairly happy with the old girl. Just this weekend, I noticed some hesitation when at idle and even more rough running when under slight load. The misfire/hesitation is worst when going up a slight hill, when the truck is accelerating at low RPMs.
I am getting zero trouble codes or freeze frame conditions on my scanner. What should be my order of diagnosis? Vacuum test at line from PCV to TB, COP test? EGR inspection? Plug inspection? Also, how do you test a coil if resistance is not a reliable method?
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06 250 5.4 40k on it, usually when cold and accelerating engine will misfire and stutter and then continue accelerating. The wrench light will flash sometimes but it wont store a code. This used to be vague in occurrence but has now started to be more a common occurrence even when up to normal operating temps.It seems only to misfire /stutter on hard acceleration or towing/hauling heavy loads. The only answer I got from a mech would be to do a computer reflash, not sure why /how this would fix whats going on.
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So basically I thought it would be a great idea to degrease my motor from the top down.... After washing I start it up and drive down the road to head abunch of misfiring under heavy load or high rpm's.
My problem is that the misfiring won't throw a code. I then proceeded to buy a new ignition coil (thinking this was the problem) but with no code to go off which cylinder was bad I just switched the good ignition coil into each cylinder and starting it.
Up each time. None of them seemed to make it better. Also the injectors all seemed to be good. So what to do ?
2002 Ford F-250 5.4l
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I have a 2000 f250 crew cab short bed 7.3 on a 6inch bds lift and 37 inch tires. When I accelerate pretty much any load above 1200 rpms I can feel a vibration, kinda feels like it may be coming from the front left but I'm not sure. I have heard that a wheel bearing going out can cause this, would this maybe be what's causing it?
I thought wheel bearing because it kind of sounds like there's a howl when decelerating, probably when accelerating as well but the trucks too loud and I can't hear it. or also have heard motor mount gone bad, I've also heard ujoints but the ujoints were done this summer. the front ujoint is bad but the front driveshaft shouldn't be turning when out of 4x4 and hubs unlocked.
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2 wks ago I was running down I95 at about 95-100 mph (basically floored) in a rush to get somewhere on time. Since then my truck has been running for crap. It threw the p0171 code when I checked it. When driving under normal conditions it pings a lot and my mpg is down about 3 mpg and has this hesitation when you get on it. Even when you accelerate at a normal rate it surges a little, it pings a lot and has a loss of power, about 30-40%. It feels really sluggish and doesnt want to pull and then you will feel it starting to pull a little harder then it starts to surge/hesitate a little again.
Truck has 147k on it. I was having a similar situation until I had the plugs replaced at 125k, so I figured the plugs shouldn't be the problem. So I replaced the fuel and air filters, cleaned the maf w/maf cleaner and Throttle body w/tb cleaner and replaced the pcv with a new one from ford. Still pings bad under load and still has the hesitation/surging and crappy fuel economy. Its running smoother but no fix yet. This is crazy trying to pinpoint this issue. The detonating isnt crappy gas because I used super and it still detonates quite a bit.
Its a 06' F250 5.4 3V XLT Lariat SC FX4....
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I just recently bought my 2002 F250 Lariat with the 5.4 and 76 thousand miles. I love this truck but I've started to notice a few things with it. When i go to start the truck it sometimes starts but then instantly shuts off. When i try it again it takes a long time to crank over. This has happened in cold and warm weather. What the problem could be and things i could do to prevent it?
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I have a 2000 Ford-F250, V10, 6.8 liter Gas. The issue is that when I try to start the vehicle it will start, but then start to idle real low and then die. If I try to restart sometime it will and sometimes you have to let it sit. I can also pump the gas and it will sometimes start.
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I have a 2000 F-250 Diesel that has started acting strangely. It starts and runs well, but every once in a while the peddle just stops working. Might be a second or so and then the RPM will go up. Or you may be running down the road and all of the sudden it just stops acting like it is getting enough fuel. Same thing it might last a second or so. Sometimes it might happen 4-5 times in a row over a few minutes and might not happen again for a day. Truck does not stall when this happens. It just does not go like it should.
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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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