Ford 6.7L Power Stroke Diesel :: 2012 - P0401 Keeps Coming Back?
Jul 23, 2015
2012 F350 with 52,XXX miles and the P0401 keeps coming back with no degree of consistency, could be an hour later could be a week before it pops back up. just in th epast 4 days i have replaced the air filter (FOMOCO) and still same thing. there is no change in performance, just dont have that warm and fuzzy feeling since im about to head out to Colorado for 10 days with 5000 lbs of toys in tow.
btw, P0401 SAYS INSUFFICIENT PRESSURE FOR EGR
PURE STOCK, NO TUNING
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After installing the Sinister Diesel EGR Cooler, a new stock turbo, new EGR valve, and new #7 and #8 injectors, I am still getting the P0401 code. Each of those items needed to be replaced, by the way.
The motor runs fine; it just continues to throw the code. It has been to the dealer, and they can't figure it out. Is there a diagnostic procedure I can follow to hunt this elusive problem down?
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I just picked up a 2011 Ford F350 about 8 months ago. I have had troubles with the check engine light coming and going. Now it's been on for good with loss of power. I have had the codes read and they came up as the p0401 and a code about the def heater. I can not remember that code off the top of my head. After some searching I have found a video about the def heater but nothing about the Egr cooler/valve. Is there anything out there about how to clean and remove the the cooler as I will be needing to do repairs myself as the truck has no warranty.
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I am finally thinking of leveling out my 2012 f-250. First of, I have the FX4 off road package on it, I guess with heavier duty shocks. When I pull my camper the back end of my truck sags quite a bit, it actually sags a lot with just my polaris sportsman 4 wheeler loaded in it. So I was wondering would a 2.5 inch leveling kit with a 4-5 inch block in the rear work? Would I have to add air bags to solve my sagging problems? Would I be better off just getting a whole suspension lift kit?
I had a 2.5" level kit with a couple inch block in the rear on my f-150 with 35s and I loved the look, not to mention you couldn't beat the price.
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Well hear I am again fix one problem now I got another problem last time it was fuel now it's oil so what I got going on is a oil leak that looks like it's coming from on top the motor on the back I first discovered this nice surprise when I went into the store and came back out and seen two 8 inch round puddles of oil laying on both sides of the motor like I said at the back I thought rear main seal but upon further inspection it's coming from somewhere on top and rolling down both sides of the motor looks like near the turbo what could this be possibly a line or a check valve or seal or o ring on the turbo? Is there a common thing to go bad on these trucks to cause a leak in that area?
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Getting DTC P0401 on my 2011 with 92K miles. First time I got the CEL, we were on vacation, so I read the code, took a screen shot, then cleared it. Called my normal dealer, setup an appt, verified that they thought the truck was safe to drive. Coming home from vacation, I was pulling the TT in my sig, and noticed significant loss of power on hills that I have pulled many times before that I couldnt even hold 55 on now. Transmission dropped into 4th a couple times, on hills that it would sometimes stay in 6th, or at most drop to 5th.
CEL stayed off for a week , and came back on again. The funny thing is that after a day or 2, the CEL went back out on its own. I read the codes the P0401 is still there as a stored code(I did not clear this time). Around town the truck drives fine, the only thing I noticed was the decrease in power when towing. Truck is at the dealer now. TECH "isn't convinced" yet that there is a problem. He is not finished diagnosing yet, and I am sure that he has specific tests to run, but I am starting to fear that I will be getting the call to come get my truck.
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My 2011 has 62k miles and has been throwing P0401 codes, which results in losing power. I assume the EGR cooler is clogged. So I went to the dealership to see if it's covered, and was told there's no warranty coverage.
I would rather blockoff the EGR cooler than repair it. I would also like the extra performance from a tuner like the MiniMaxx. I do prefer the stock exhaust and not real excited about the drone/smell that comes with deleted DPF.
Will I have issues if it's tuned with the EGR blocked off, and stock exhaust? Or am I better off doing a full delete at this point?
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So I'm about to do the oil and EGR coolers on my 6.0. At one point, or currently, my EGR cooler was leaking, so I've got that gooey residue in the intake, at least around the EGR valve. No dry carbon residue. I wondering what is the best way to clean the intake out, if at all. I have to assume there's some clogging in there, especially since I've had the P0401 code for a while. I just wanted to get this done right once, so I'm not coming back to it again any time soon....
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Near the end of a 5 hour drive on Christmas day my check engine light came on. I read the code: P0401. I got it into the dealer this week and was told it was a blocked EGR cooler. The truck has 66k miles. Lucky for me, I have the extended warranty! They replaced a "tube assembly". I sure hope this is not something that is going to repeat. I would hate to pay for this repair in the future. They had the truck 2 days. Is this a common problem or am I just "lucky"?
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The truck in question is a 2004 6.0L Excursion, stock original turbo, no tunes, and EGR cooler delete done 1 year ago. Scanned for codes and none were found except for EGR insufficient flow P0401 code which is due to the EGR cooler delete.
Upon startup (no issues there) the VGT reads 67-70, now once the truck goes to high idle to warm up (1150 or so RPM) the VGT slowing climbs to 85 and stays there. If I blimp the throttle or step on the brake it goes back to 67-70 at normal idle. This has been happening for a few months now on a regular basis. I have checked the MAP, BARO, and EBP readings at KOEO and they are all within 0.6 of each other (14.4-15.0). The EBP tube was checked and cleaned (no buildup present)..
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2005 PSD Ex. 4x4.
Drove it a few nights ago and it felt really gutless. Next morning, no start. Well, it tried, but it sounded like it was run out of fuel (had half a tank)and I turned it off. Changed both fuel filters, key on / key off to purge system about 2 dozen times. Still no start.
I have all eight injectors with "injector Circuit Low" code, a P0401 - Exhaust Gas ReCir Flow Insufficient Detected, and P0672 - Glow Plug #2 (which it has had for a few months).
I thought with all of the injectors, it might be the FICM, checked the FICM voltage with Torque during a start and it showed 47V the whole time.
Harness? I did not think running with the glow plug error would be a big deal especially during the summer in So Cal.
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I recently purchased my 2011 F250 Powerstroke a week ago today with 87000 miles on it. the dealer assured me they did all the maintenance on the truck before i was able to drive it home. I noticed on my dash that it kept popping up i needed to change oil soon.. so i got out to investigate and realized i was about a quart low on oil so i looked around more and am seeing that i have a leak coming from the back of the engine running down to the oil pan.. I have not noticed any on on the ground at all but what this leak is coming from...
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I have a small coolant leak coming from the passenger side near the back of the engine that forms a spot about the size of a dinner plate if it sits for a few days.
One thing I noticed is if I turn off the AC selector switch when I park I will get the drip but if I leave the switch on MAX AC when I shut the truck off I do not get any leaking.
It is definitely coolant and not just the condensation from use of the AC. If I haven't used the truck for a few days or if I have run it with the AC off I will get the drips.
If I run with the AC on and leave the switch in the on position when I shut the truck off it won't leak. I have tried to locate it from looking above and below but can't determine where it is coming from.
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2012 6.7 F250 with 17k miles. It's getting hotter here and the last couple of days when shutting down there is a sound coming from the engine compartment that sounds like an air pump on one of those load-leveling systems. It will go on for about 15 seconds then stop.
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My dad has a 2012 6.7 powerstroke with about 84,000 kms on it. Truck runs great, works great, but has a noise that sounds like its coming from a pump of some sort on the engine. I know nothing about these trucks and told him I would see what I could find out before we take it to the dealer to see if its a warranty issue. Video below.....
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Today I drove to dinner in my 2012 6.7 with no problems then on the way home my brother said he noticed my truck was white smoking quite a bit and he said there was a very strong exhaust smell coming from my truck ( he was in his car behind me) I ran a diagnostic test and what came up was code P0401 (I believe that's right). Need to figure out what is going on with my truck before I take it to the mechanics and get charged up. The truck still has DPFs in it just has a DPF back exhaust and has a AFE cold air intake running on a stock tune. However I do have the DPF deletes and EGR delete sitting in my garage just haven't gotten them on the truck yet.
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It's my turn, while out site seeing my back seat power window don't work , the control from drivers seat or from the back seat door control, I popped both covers on the control switch and both are firmly plugged in, I don't have my meter with me to see if power is running back to the switch , this morning I'll try to switch out the two back seat controls to see if I can get at least that window to go down , 04 350 , would there be a fuse for each or is it in the switch in the door that the harness plugs into , that's the only window that won't go down...
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When the truck shifts into 5th gear i instantly feel a constant vibration and noise until it shifts to 6th gear. This happens nearly every time while driving at 40mph. Rpm range 1200 - 2000. I bought the truck new on June 30th and noticed the problem on my way to work on Monday July 2nd. Took it to the dealer on July 5th and the tech said it was the torque converter slipping. I drove it home because they didn't have time to work on it. Took it back on July 12th and the dealer has had it since (currently 30 days) They originally told me it was not the engine or transmission and it was an exhaust problem. Last week they said it was the motor mounts and said they would be done.
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Crawled under the new to me 13 super duty last weekend to see this. Where it's coming from? Over tightened oil filter maybe? The filter in the picture is the new filter fyi. Old filter had a little oil on it. It's all the way across the back of the oil pan.
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My 2012 diesel frequently stalls momentarily after I touch the brake. This is very annoying as I drive in heavy traffic and often have to touch the brake then accelerate to merge into freeway traffic. The dealer service department said this was a 'feature' and not a flaw. Is there any way to eliminate this issue?
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I have my truck idling in the driveway while doing a coolant flush and it developed a weird idle. It will idle fine for a while then all of a sudden it will idle up a little for about 3 seconds then go back down. It will do this 3-4 times then go back to a regular idle for a while. I got in and watched my SCT X4 to see if anything changes. My actually RPM didn't change and neither did my fuel pressure or anything but my turbo added about 1.5 pounds of boost when it does it. It happens about every 4-5 minutes.
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