6.7L problem - Diesel Forum - TheDieselStop.com
6.7L Power Stroke Engine and Drivetrain Discussion of the 6.7L Power Stroke diesel engine and drivetrain in the 2011-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.7L Power Stroke engine.

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post #1 of 12 (permalink) Old 02-26-2019, 06:29 PM Thread Starter
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Question 6.7L problem

OK here what this forum is really about. Engine light logo just popped up , went auto parts store thinking (mistakenly the nice lady would plug in her reader and tell me what to replace) WRONG. I DID STATE I WAS NEW TO THIS. Any way the code was P0170 and P20ee being the smart cookie I am ran to big brother ,GOOGLE, gave 4-6 different suggestions. Truck is in shop as I type how do I trust a shop (not Ford dealer) I don't know? Any help for a poor dumbbell.
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post #2 of 12 (permalink) Old 02-26-2019, 07:55 PM
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Rgval- you need to give us more information. What kind of vehicle? What symptoms? You will get a lot more answers if you post in the appropriate section for the vehicle you are driving.


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post #3 of 12 (permalink) Old 02-27-2019, 01:55 PM Thread Starter
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Sorry about the lank of information I still not sure where to post new questions , but I am the owner of 2015 ford 250 diesel 6.7L 66,000miles as stated in my first I admit I am a novice but appreciate any help.
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post #4 of 12 (permalink) Old 03-02-2019, 06:59 AM
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Codes P0170 and P20EE together or by themselves can be very difficult to diagnose. I suspect a non-dealer shop will definitely have trouble and end up guessing or consulting Google as you did. I am not sure what you expect to learn from asking but I doubt you will learn much if I start rambling on with technical information. If your shop is looking for help or direction I recommend diagnosing the P0170 code first. The diagnostics for both codes instruct to diagnose "other codes first" which can befuddle pretty much anyone. The P0170 code diagnoses an error in the air to fuel ratio in the combustion chambers which can be a fault with the fuel injection system or the air management system including all engine sensors. Correcting what is coming out of the engine and being sent to the exhaust aftertreatment system FIRST is crucial. Excessive amounts of NOx pollutants that exceed what the aftertreatment system is capable of handling will trigger codes (P20EE) that may not necessarily indicate an actual fault with the system. In other words, Fix the P0170 code first and the P20EE will likely be corrected as a result. Good luck.


ON EDIT: For 2015 model year there is a service message for the P0170 code that states there is a calibration update that might correct the concern. There are also several cumulative calibration updates that address exhaust aftreatment concerns that would also be beneficial though the code P20EE itself is not listed. If it were my truck I would perform a visual inspection of the air intake and exhaust systems correcting any problems found, update the calibration and perform a manual regeneration then drive the truck to see if the codes return before going nuts. Calibration updates are not necessarily a golden ticket but they do frequently help.


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Last edited by ford_doctor; 03-02-2019 at 07:07 AM.
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post #5 of 12 (permalink) Old 03-02-2019, 08:16 AM
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As complicated as these newer vehicles are I only trust the dealer. However you still have to do some research to find a good dealer. I have a dealer 5 miles from the house but i drive 20 miles to my dealer. Good luck with your repair. I would however find a dealer that you can trust when you get your truck back.
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post #6 of 12 (permalink) Old 04-06-2019, 10:46 AM Thread Starter
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Help again, Have 2015 250 6.7l diesel Purchased at 66,000miles Changed oil at 67,000. did not know history. Changed Transfer case oil at 67,500. same reason. Shop checked front and rear differentials and Trans. all OK Now for the question

Current miles 68,878.0 Current Engine hours 2084 , Current Engine Idle hours 363.

If 1 hour of idle equals ls 25 approx miles (363 x 25=9,075miles

If 1 Engine hour equals 60 miles approx (2084 x 60 = 125,040.)

When do I change my engine oil next????

What am I missing?
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post #7 of 12 (permalink) Old 04-06-2019, 12:15 PM
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If you reset the the intelligent oil life monitor, you change it when it tells you to change it.......approx 7500 miles

If you didn't reset it, reset it now.
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post #8 of 12 (permalink) Old 04-07-2019, 06:35 AM
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Change it at +7500 miles OR +300 engine hours... which ever comes first.


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post #9 of 12 (permalink) Old 04-07-2019, 07:58 AM
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The computer will tell you when to change the oil. It calculates what the engine is doing and if you are towing. No need to over think it. However there is no way to find what % of oil life is remaining anymore so you have to wait on the truck. Not sure why Ford stopped the vehicle health program witch is where you could find out this information.
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post #10 of 12 (permalink) Old 04-07-2019, 10:16 AM
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I change mine at 3k but I tow a lot and use Delo. I believe the minder tracks both mileage and fuel flow, i.e. towing will cause it to pop up sooner than 7.5k.
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post #11 of 12 (permalink) Old 04-08-2019, 09:34 PM Thread Starter
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Thank all you guys for your input it is appreciated. I know what I know it's just not much about diesel trucks.



That being said In my last post about "When do I change my oil?" I failed to understand the math (not my strong suit )



If my Engine has 2,084 Hours since manufacture and the "Book" said avg. 60miles per hour that comes up to 125,040 miles, but my odometer states 68,878. Is that because "something" was not Reset?



If one adds the Idle hours of 363 times 25mile per would we not and an additional 9,075 miles on top of the 125,040.?



I truly am sorry to over think this but I have a very boring life until my next road trip in May


Thanks again


1st time owner 2015 6.7l 250 Ford (as if you couldn't tell)
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post #12 of 12 (permalink) Old 04-08-2019, 10:13 PM
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I have had vehicles with avg speed on the trip computer for years. 60 mph is way high unless you drive only open interstate and stop at the first fuel station at every fuel stop. My commute is 20 miles of interstate (75 mph) and 12 more of 60mph road with three traffic lights where I rarely would sit more than one light cycle. I consistently would have 37 or 38 mph on that display. Even if I reset it on a highway trip of 1000 miles I would get home and it would be 44 mph with fuel stops, short dinner runs, etc and the bulk at 70-75 mph. It is very much possible that it has 2084 hours at avg of 33 mph plus the idle time. Remote start and someone that thinks a diesel engine is supposed to run all the time could get you the 300 plus idle hours. If you look at 1720 hours moving then the avg speed is 40 mph range. The idle count likely would include coasting and not just stationary idle. It all looks good and is inline as far as I can tell. I checked my 2006 that has hour count only. This trucked is not idled much and is not used for commutes. It hauls horses or hay or a tractor down the highway and it has averaged 38.2 mph over its nearly 135000 miles using hour count as divisor for that milage

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Last edited by jimmy; 04-08-2019 at 10:30 PM.
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