Ford 7.3L Power Stroke (1999-2003) :: Truck Shuts Off When Going Down Highway
Dec 7, 2015
Headed to town with the kids and my truck shuts off going down highway. I pull over and start it back up and make it to 30mph and shuts off again. This time it will not start. I have 1/4 tank of fuel, I first thought it maybe the issue inside the tank causing it to shut off. I get some diesel pour it in and it fires up for about 15 secs and shuts off. I pull the fuel filter, making sure o have fuel in the bowl. Start it up and it runs for about 10 sec. I then swap out the CPS. Same thing, runs about 20 and cuts off. I then call AAA because I am tired and ready to go home. I have it towed to my buddy's shop. He has not looked at it yet.
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2003 E-550 7.3L with IDM codes clear all code, do in injector buzz test P1276 and P1275. Start truck and SES light comes on. shut off truck code IDM code go to KOEF and have P1272, P1273, P1275, P1276. just replaced valve cover harness ohm wires to IDM put new IDM in. Truck shuts off while going down highway, turn key off then back on an usually starts on it own ....
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When driving my truck it coughs randomly not towing or anything going about 70 mph drops rps slightly and goes right back. It has 212000 miles new turbo and filters...
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Last night when i left work I noticed my fuel pressure was running about 77 psi, it normally runs about 68psi. today I took my daughter to practice and it was around 83psi, on the way home it was up to 95psi, so I parked it and took another truck to work.
About a week and a half ago I lost fuel pressure going down the highway and the truck died, finally decided my pick-up foot must have come off and had my sister in law bring me some diesel and it has drove fine ever since. (it was right at a quarter tank).
I have the FRX from riffraff and am thinking some pieces of that foot have got into the fuel bowl and plugging up the return. Things to check? Could it be a problem with the fuel gauge or wiring, and how to test them. It is an autometer gauge from riffraff.
It will probably be a few weeks before I can do much more than clean out the fuel bowl. I don't have anywhere inside to work on it and it's been rain/sleet/freezing rain/snow for the last 10 days. I have most of the stuff to do the hutch mod and its next on the list but was hoping to put it off till spring.
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Having issues for a couple days now. Starting with the last two weeks while driving, the water in fuel, wait to start, and check engine lights would flash on. It would resume with more fuel as if nothing happened. Twice on separate days there was enough water that it shut it down in the middle of driving and it would have to be parked then restarted. One morning went out to start the truck, was inside for about 10 minutes and heard the truck shut off. Went out to see if it would restart and there was no wait to start light. Fuses have been checked and none are blown. Been shutting off like this for a couple days while trying to warm up, so it hasn't been driven because it hasn't ran long enough. Yes it's plugged in because of the cold.
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I have a little problem with my 1999 f250 7.3 power stroke diesel. Every once in awhile, while driving the truck would die completely but i switch it into neutral and started right up. What could be the problem?
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This started about 6 weeks ago. While sitting at a stop light the motor cut out. After some research I replaced the cps. Truck ran fine for about 3 weeks, then shut down again while pulling into the driveway of a store. Replaced the cps again (this time with a ford one). Ran fine for another 3 weeks, then shut down again on the freeway. No CEL on any occasion.
It's just like someone turned the key off. No rough idling at all. No smoke during starting or driving. When it shuts down, it will not start again for 20-30 minutes, no matter how many time you crank it. It will just turn over, no sputter. When it fires up again there is no air in the lines either, it runs like nothing happened.
I'm now thinking it might be a ipr issue...is there a way I can check myself or does it need to go to the mechanic? Or is it something completely different? This is my mother in laws daily driver, 178k. She does not drive on the freeway, 80% of the mileage is city driving. What could be going on?
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I have a 99 f350 Ford 7.3 service truck. It will crank and run but when it gets to 150 or 180 degrees it shuts off and will not crank back until it cools off. I have change the ECM I have change the IDM still same thing it runs till gets hot and then it cuts off. I have changed IPR valve IPC sensor .check the high pressure oil pressure it is around 800 900 at an idle it is around that pressure but when first starts up it is higher once it starts and runs it idles around that pressure 800 900 psi....
I have hooked up my scanner and it shows around 150 degrees oil temperature it shuts off . The high pressure oil stays the same as it was when you first crank it the low pressure crankcase oil is 60 psi ... Once the oil temperature reaches around 150 ~160 degrees the engine will shut off . Once you let it sit overnight or for several hours it might crank up ....
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While pulling onto the highway and pulling pretty hard lost engine power all boost then engine truned off. Top of engine is covered in oil..... What happened?
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04 with 170k miles. truck runs fine. every now and then truck shuts off while driving. turn it off the it restarts every time. Only code that comes up is number 6 injector. The contribution test injector is firing right. FICM voltage is 47.5. has new ipr and hpop also 6k miles ago. Could it be number 6 shorts out or something crazy killing truck? or maybe a crank sensor.
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Yesterday, my truck began to shut off abruptly. Under every condition, from idling to slow running (30mph), and 70 mph, to load and no load. Wait 1 minute and it would start and run for 1 minute 15 seconds. If the batteries were disconnected, the truck would run for 13 minutes before shutting off. Have replaced the fuel filters. Still does it, but runs for between 10 and 20 minutes before shutting off.
Am seeing only two errors codes. P1000, and P0603. I was 40 miles into the Ville Vidal, when this started, and 150 miles from home. To get home, I disconnected the batteries too many times to count, and bled the HFCM numerous times. Am also seeing the moisture in fuel icon on teh dash light up when it quits, but so far as I can tell there is no moisture in the separate.
2003 F450 6.0, automatic. 150K miles.
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I have a 2006 that shuts off in a hard pull, if I wait 3 minutes it starts again. I hooked up my scan tool and when it dies and I crank it it only builds 200psi oil pressure, let it sit it builds enough pressure to run fine. If I dont push it over 3500psi for more than minute it wont die pull a hill it dies again. Is it the hpop or an o-ring.
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2004 f350 after i shut the truck off something was buzzing. So I popped the hood and found its the injector harness or injectors.Is this normal or something I need to look into?
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My 2001 F350 7.3 dually diesel Automatic has been a pretty good truck but recently it has been dying. Engine just randomly shuts off without warning while Driving. Check engine light comes on sometimes. Some of the time it will restart if I cycle the key. Once its running again I can rev the engine up without a sputter but after a few hundred yards down the road it will die again. I noticed driving on the highway when it does it my truck will buck first, then...
If I leave it in drive with the key in the run position when it dies and I'm coasting down the highway the Tach starts jumping around like its trying to restart itself, all on its own. I don't have a scanner.
The last time it died I coasted into my driveway and it wouldn't restart, went back out there 30 minutes later and it fired right up. Its only 40 degrees here if that matters, not hot by any means.
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I was driving on highway about 55MPH when I lost power suddenly. I was able to pull off, but did not have power brakes or power steering. Gas tank was near 1/4 gallon on the gauge, but sometimes my gauge is wrong, as I've run out 2x when I should have still had a few gallons in it.
At first I thought CPS, but I didn't have a spare with me to swap. Well, after an hour or so, I cranked it, and it would turn over but not even try to start. I floored the gas pedal and it fired up and I was able to get home.
During the no start issue, there was no oil pressure reading on the gauge and the tach was not moving, even though it was turning strong. There was no white smoke that I could see either.
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I'm a mechanic but work only on cars so I'm a little shy on diagnosing trucks. I have a 2001 7.3 f250 4x4 short bed, when I give it gas I can hear a clunk, when I let off of the gas I also hear a clunk. Also when traveling at high way speeds I can feel a strong vibration when I very lightly give it gas but the vibration goes away as I give it more gas.
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I have recently picked up an older F350 2WD 7.3 DRW Lariat. the price was right higher miles but hey it is a 7.3, overall in very good shape.
So the issue at hand is the truck runs great most of the time and puttering around at city speeds you would never know there is any issue;
Get the truck out on the highway set the cruse at 70 to 72 and if you hit a rise in the road or other reason to slightly accelerate the truck chugs and bucks. For lack of a better description it goes chug chug chug, if you accelerate harder to downshift it goes away or if you back off the throttle it goes away. This happens with cruse on or off, a steady foot on the pedal will cause this as well.
I have also noticed that when you let off the throttle the sound the truck makes de-fueling is just very different and "off" sounding . Not sure how to describe it but it sounds funky ... clearly not right when compared to other 7.3 or my 6.0 truck.
What I have done, :
1. Had the truck scanned with an AE and a snap-on scanner both show no codes ran injector tests no contribution errors, not even in # 8.
2. Changed fuel filter
3. Changed Oil and Filters ( tried both full synthetic Rotella and Dino oil looking for a difference )
4. Cleaned out the fuel filter housing just in case.
5. Confirmed injector O-Rings are not leaking
This feels like a fuel issue, my next thought was start looking at fuel pressure under load at speed to see if there was a drop when this is happening ?
Is there a way to test fuel pumps in this truck ? Maybe a clogged pick-up screen ? Where do I start looking next ? I have reasonable mechanical skills but don't know this motor very well, this doesn't seem like a CPS issue..
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I have a 45 min drive to work every day, all highway. Lately on the way home in the afternoon I have been experiencing a surging noise that seems to just happen while I'm doing hwy speeds. It sounds to me like the fan is tuning on and off. Is that possible? It comes on for a few min. And then off again. I have new icp ipr cps. New oil and filter and fuel filter.
Also I'm still having a battery light on and off issue while I'm driving. Is possible the two issues are connected. I plane on doing extensive search for a bad wire this weekend. Batteries and alternator have checked out and are fairly new.
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I bought a 99 f350, that already had HID's in it, i found out i was running the wrong batters (weren't 800 cold crank) I just had to replace the alternator. Ever since the new alternator when i turn on my headlights my truck shuts off. IT fried my IDM and i just put a new IDM and 2 new batteries in it today. Thinking i had fixed the problem i drove around no issues, finally i was leaving someones house and turned on my lights, and truck shuts off!!! It restarts but now im trowing a code!!!! im guessing the HIDs are wired wrong and that's why its shutting down the truck but OEM IDM from ford is 1300$!!!!! brand new one installed today,
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I have a 2003 7.3. Suddenly a week ago when I left work, I noticed my truck wasn't picking up much, but i was in a 40mph zone. I then jumped on the freeway and noticed the truck would not go over 60mph. Once I exited and got on another road with a 55mph speed limit, the truck would not go over 45mph, I had the pedal pressed all the way down and would not go over 2000 rpms. Also, for the transmission to shift, I would have to let off the accelerator.
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I have a e99 f350 7.3 all stock. I have no power. The truck will crank for about 15-20sec before it'll turn over. I just purchased the*AE*but am fairly new to understanding it all. In idle its a little rough and when I drive I can only stay in the neighborhood because of fear of getting rearended due to very slow acceleration. Whats weird is that when i have no power while i am driving ill keep the pedal down throw it in nuetral and my rpms and*icp*pressure jump up right away. Things I've replaced:
Icp*sensor
Fuel pump
Pcm
Tps
Cps
Ipr
Dropped tanked and cleaned screens
When cranking my*icp*pressure climbs slowly to right under 500. I dont know what else to do ive been working on this truck dor two months some days 13hs straight, I am feeling defeated. Codes p1249 1211 1209....
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