Ford 6.0L Power Stroke Diesel :: Intermittent Limp Mode
Apr 8, 2015
I was driving to work and got about 15 kms from home and all of a sudden, the engine lost power and I coasted to a stop, with the engine running rough on 3 or 4 cylinders. No engine light on and I have a Scangauge II and all the gauge readings looked ok. the fuel pressure was 42, but the glycerine in the gauge froze solid in the winter and I didn't think it was right. I stopped the engine and looked for obvious problems like a failed o-ring on the fuel filter, any leaks and found none. tried the engine again and it ran perfect again, drove the remaining 40 kms to work with no problem. It happened again on the way home, no engine light, again, stopped on the side of the road, it would not restart, check the SG for codes and there was none. Then it started again and I drove home fine again.
I picked up a new gauge for the dash I had added, and checked the pressure, it was 48 and steady with the engine running, but I then changed the fuel filters and installed the blue spring kit to the filter housing I was waiting for warmer weather to install. Drove it to work again the next week, it ran perfect, fuel pressure steady at 60. Then I used it yesterday and it lost power again. I could not get it to run properly for quite a few attempted starts, the it was fine again and I drove it home.
I idled it and checked for codes again, none. ICP was 740, FMP was 54, SYC 1, Fuel Pressure 60. While it was idling, it did it again, idle slowed down and all the previous reading stayed the same, fuel delivery did go up though.
Previous work done. (Current Kms = 390000) 180000 kms, new injectors, turbo, EGR cooler, (EGR blocked off as well), ICP sensor and regulator, in dash Fuel Pressure and ICP gauges installed. FICM sent to Swampy's after alternator died and took out FICM and upgraded to 54v.
The SG when I try to clear the codes it says "Not Responding" with the key on or off, so I don't think it will read or clear them. Where to start? I am thinking wiring somewhere...
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I was towing a fairly heavy trailer yesterday (around 10k) and laying into the throttle to gain some speed before a big hill when I completely lost power. It slowed me down to about 10 MPH.
I was able to drive home at very slow speeds and the only way to get over 10 MPH (only up to about 20MPH was to very lightly accelerate up to speed. Any hard acceleration and it cut me off to 10 MPH. No warning lights of any kind going off...
Truck has a Hypertech Max Energy programmer on stage 2.
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I'm going to do a weld-in-plug delete in my RV in the next couple weeks, and its a crapshoot apparently if it'll throw a code. My immediate concern is I want to go on a trip right after, and I won't have time to fiddle about getting an SCT tuner to turn the code off. What I definitely don't want is a code for EGR flow restriction to eventually cause my motor to go into some kind of limp mode while I'm in the middle of a long drive. Is this possible?
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While exiting the interstate just now my 2011 f250 just went in to limp mode going up the ramp and cut off. I am sitting at the top of a very busy exit truck won't restart .
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What's the best tune for this motor? I have an hs mini max with the spe hot tune and has nothing but problems towing with with it. They swore up and down for a year I was the only one with issues for a year and then finally admitted it's not good for towing and lots of people had issues with it so they gave me their towing tune for free but it isn't very good either.
The hot tune is a little too hot and keeps going into limp mode when towing up hills even on the lowest stock setting, or really getting on the throttle on any setting not to mention way too high of boost for a stock turbo at 30-32 on every level . It makes sports cars look slow before hitting limp mode though.
Their tow tune fixed that problem but it's boost is too low at only 18-19 (had 24 running stock Ford programming) and it smokes like crazy, more smoke on higher settings without getting any faster or any more boost. It doesn't smoke much on the stock setting but clearly the other settings aren't very well tuned.
I want a tune that will tow 25k without issues and smoke(not literally) sports cars off the line at factory boost level s so it doesn't blow the turbo.
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What the problem is with my F-350 6.0. I have an intermittent problem with my Speedo reading zero while I'm doing 70mph on the fwy. since the speedo won't work the truck goes into limp mode, the turbo will not function at optimum level. I have replaced the diff. sensor, the trani sensor, the a.b.s.sensors, the instrument cluster to a reman cluster. Then when I had a local mechanic plug a laptop dianostic program on it as he was running through the system inadvertently the radio cut out, so I found that who ever installed the after market stereo they cut a few wires to the harness, I went to the junk yard found the harness end and replaced the end. so with all that said and done no one knows what is causing this speedo not to work and limp mode. about 4 years ago the oil pump stopped working and ruined the turbo so the whole front end of that glorious 6.0 was rebuilt the problem started about a year after that.
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My truck gave me low fuel pressure and reduced pressure limp mode at 21,000 miles. The fuel and air filters were changed at 16,000. The dealer said all they found was the fuel filters (at 21,000) were what needed to be changed. Also, why does my truck hum??
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I have a 2002 Lincoln LS 3.9L. Intermittently the temp. gauge will go up near hot, the fan will come on and gauge will drop back to normal. Car will go into limp mode when this happens. Fan and thermostat were replaced several months ago to eliminate this problem but it is back. Mechanic had trouble getting air out of the cooling system at the time.
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It happened to me. I was 2 hours into my trip and towing the camper when I got the reduced power CEL. I have 28,000 miles on my truck and always tow in "tow/haul" mode with the exhaust brake on. I was lucky in that I has on a limited access highway and just happened to be approaching an exit to a fuel station with big rig access. I limped in there at about 20MPH checked the code with my Forscan lite and found the P259F code. I typed that into Google and found a thread on another Diesel forum! Some guys said it went away after 3 or 4 restarts. So, I tried a couple of restarts...no luck.
I was down to half a tank of fuel so I filled up and parked. As long as I was parked, I went into the camper and used the bathroom. When I got back in the truck, I thought about the WiFi scan adapter plugged into my OBDII connector and wondered if I should unplug it. I did and everything worked! So, I drove the next 4 hours in "tow/haul" mode, but I left the EB off. I also never plugged in the WiFi scan adapter because I didn't want to risk going into the reduced power mode again. Anyway, we made it home without incident. One of the reasons I traded my 2013 in on a 2015 was to get the engine improvements and the EB. I sure don't want to give up the EB. I'm going to take mine to the dealer, but after reading this post, I'm not expecting anything much.
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I have a 2008 F350 with a 6.4 Powerstroke diesel engine that just experienced total engine failure. It has around 65K miles.
There is a heavy burn star pattern on all 8 pistons, a few pistons are cracked, a few cylinder walls are scored, glow plugs are melted, both heads are cracked with multiple stress fractures in each head.
About 1 month previously, the transmission would not work in tow mode and caused the engine to go into limp home mode. The dealership just replaced the entire tranny as a warranty item. About 1 week before the engine failure, I put in a 5.25 oz bottle of Lucas injector cleaner with a full tank of gas.
The Ford dealership is saying that the star pattern on all 8 pistons is due to high pressure fuel overspray and is evidence that I had a tuner on this engine and that the warranty is invalid. I did not have a tuner. What might have caused this engine failure?
Also, they only ripped down the top half of the motor, not the bottom half. I heard this might have been caused by a cracked crank shaft, but Ford refuses to investigate this possibility.
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Ok I have an early 2004 F250. Recently changed out the #8 injector and then had to replace the ICP Sensor. Was running great then while driving down the road just died all of a sudden. Would start right back up with no issues. Continue driving and I am getting intermittent power loss. Also noticed that when it would lose power suddenly the glow plug light would come on.
Codes are P0102, P0113, P0272, and P1000.
P0102 Mass or Volume flow circuit low input
P0113 Intake Temp circuit High input
These are just soft codes not setting a light off. MAF is plugged in and I will check wiring here later after work but could this be causing my intermittent issues?
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So the other day as I was trying to accelerate my car had absolutely no power at all. it almost seemed like it went into a limp mode or something of the sort. No matter what gear or how much gas i gave it, it barely chugged along at more than an idle. I pulled over turned it off, then waited a few seconds and turned it back on, same deal. Once more, I turned it off and back on and finally, it seemed to be ok. It flashed a warning light but it cleared after I turned off the car.
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Is there a way to auto engage the Tow/Haul mode when you plug in a trailer that requires brakes? Be nice since I sometimes forget to push the button after we stopped for lunch...
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How do you diagnose a bad fan clutch? When driving in tow/haul mode I get a noise like a jet engine. It starts going down grade or upgrade and does not stop after leveling out. I have switched off tow/haul and it is still there. Over on the Diesel Stop site I found a couple of guys who have had the same problem. Concern is everything I have read there are no codes thrown. Have not taken to my local Ford Dealer to see what they say.
Driving a 2011 F-250, August 2010 build date with 76,500 miles. Problem started about 6 weeks ago when pulling an 8000 lb travel trailer in the White Mountains of NH.
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Been having an issue every once in a while for the past 3-4 weeks.
Truck will not start when cranking sometimes (has happened 4 different times as of today), then I will stop cranking, and retry and it will fire up.
Of course when I try to replicate the no start, it won't replicate. So from here on out I will make sure my Torque Pro connects to the BAXF before cranking.
I know to look at the HPOP psi number.
I need to know the other parameters to look at during cranking. I am suspecting the STC, dummy plugs, or stand pipes with a leak by or drain down of oil.
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I have a 2004 F250 4x4 with 204,000. runs great! But last year, I noticed the A/C would work fine to begin with, but after running down the road a bit, it would cut off and I would have to turn it off, let it "rest" a bit, then it may or may not come back on, now I am a electrician by trade, and I figure it is a bad switch somewhere, but a intermittent problem is heck to find sometimes!!!
I replaced the low pressure switch in the accumulator, then I was thinking the little wiring plug might be bad, so I replaced that but it's still doing it. I was going for the relay next, but I'm not sure which one it is and can't seem to find a wiring diagram for the system. I'm stumped on which way to go. Its full of 134a and will freeze you out--- when it works!!
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Well today I got an intermittent battery light so I got the batteries tested and they were both good and then the alternator is only pushing 12 volts so I guess I need a new one right? Which know should I get? And how hard is it to get the belt to relieve tension...
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My IPR value on torque pro koeo is at 14.7. Is that normal? Usually idles around 23.7-24 but when I experience a slight rough idle IPR will be 26-27. When I was under the truck last week I did see there's been oil leaking somewhere seems leaving evidence on the drivers side rear of bellhousing. Any relation?
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I just bought a 2004 F350 6.0 cclb 6 speed with 260k on it. The previous owner seemed to have taken good care of the truck. It is basically stock with the exception of the blue spring mod, and a sinister diesel coolant filter. Anyways, I brought the truck home and it ran great. Now I have an issue that needs to be addressed.
The issue: I am experiencing a intermittent loss of power, stall, or stumble when engine is cold. After sitting all night the truck will start fine and idle fine. But when I try to accelerate and bring engine RPM up the engine will stumble and lose all throttle response, when this happens the WTS and WIF light flash. Sometimes it just stumbles, sometimes the truck will actually die and then restart. The issue seems to go away after the engine has reached operating temp.
I did some research on the issue and it seems there is actually a TSB out from ford for this issue. It explains that some 2003-2004 6.0's might have wiring harness chaffing issues. This is what the issue I am having seems like to me (shorting harness). I looked up codes on the truck and there is an active code (#8 glow plug circuit fault). I did a short visual inspection of harness and didn't see anything out of the ordinary. But i wonder if it would be worth changing both sides of the glow plug harness?
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I got into my car about 5 minutes ago and while driving i noticed a ample amount of power loss. I would go half throttle and my rmp's would go up by my speed seemed lacking even full on it it seemed to be lagging and was a slow climb to 60. Could it be my turbo not putting out or something more serious. Its a 99 1.8t ....
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I have a 2012 ford f350 SRW 4x4 with the 6.7L. Problem I have just started to have. When going downhill in tow haul the truck at first will hold you back then all of a sudden it starts to up shift at 20 mph it reaches 6th gear pretty quick. I talked to the dealer and they suggested I was pushing the shift buttons, but I am not. They told me to drive it till next week and then they will see if there are any codes in it.
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