6.7 F350 reduced engine power/CEL issue 3rd time

tlb017

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I have posted in a few other forums and was recommended to check this site out. After doing a search of Reduced engine power on a stock 2015 6.7 with 56k miles I figured I would post here to see if anyone has a suggestion to add or a link to a previous post for help. I will be taking the truck in Monday to see if the code stored this time (I have photos and videos of both times after the initial CEL/REP lights with odometer readings)

Anyone had experience with this? I posted this on powerstroke.org, wondering if anyone in here had experience the same issue? We mainly use the truck for towing the boat or travel trailer.

So, here is what I have, 2015 F350 with 56k miles. Had the fuel filters replaced 53.5k miles. Drove the truck 700 miles home. Three days of being home I get the first CEL and Reduced engine power, its Sunday so no dealer open. I take the truck in to a dealer there (600 miles from where it was serviced) and was told they can't find anything wrong other than a P0087 code, claims to have checked over all fittings/filters. Informed to drive the truck to see if it was just an air bubble in the line/loose fuel filter. Pay the $150 bucks for them to turn a light off......

Fast forward 4 days and I am driving back to Fl on Saturday night, I get the same issue, well nowhere to stop on I-10 and no dealer open, I just drive it the rest of the way. Shut the truck off and when I go to take it in no light or reduced power. I showed the dealership the photo and video of the lights on with the OD reading from this time and the print out from the dealer in Louisiana. Dealer in FL keeps the truck for two days and claims they can't recreate the problem and checked over all the filters again, handed another $158 bill because he claims there was only one old code showing from where the dealer in LA had checked the truck out even though I had photo proof of the odometer reading with the light and REP warning.

Fast forward a week from getting it out the shop the second time and I am getting on the interstate, truck shudders and bucks, reduced engine power and CEL. Called the dealer that put the filters on and kept the truck for 2 days, no mechanic on duty on Saturdays. Soon as I turn the truck off the reduced engine power goes away, but the CEL stays on. I have no idea if it will still be on Monday when they open, I once again took photos and videos of it.

Does anyone on here know what might be causing this? I have read all the other post and most everyones were corrected by loose filters, well after checking myself and both dealerships I am pretty sure that isn't the problem. One thing I noticed this time is I had just come out of a regen cycle a few minutes before it acted up. I am only 4k miles away from being out of warranty, which traveling home for the holidays I will cut that more than in half.
 

046.ohBills

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being that close to the warranty with those problems i have heard of guys accidentally losing oil and standing on the gas in neutral and bringing back the truck to ford to fix once and for all.
 

sootie

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I have posted in a few other forums and was recommended to check this site out. After doing a search of Reduced engine power on a stock 2015 6.7 with 56k miles I figured I would post here to see if anyone has a suggestion to add or a link to a previous post for help. I will be taking the truck in Monday to see if the code stored this time (I have photos and videos of both times after the initial CEL/REP lights with odometer readings)

Anyone had experience with this? I posted this on powerstroke.org, wondering if anyone in here had experience the same issue? We mainly use the truck for towing the boat or travel trailer.

So, here is what I have, 2015 F350 with 56k miles. Had the fuel filters replaced 53.5k miles. Drove the truck 700 miles home. Three days of being home I get the first CEL and Reduced engine power, its Sunday so no dealer open. I take the truck in to a dealer there (600 miles from where it was serviced) and was told they can't find anything wrong other than a P0087 code, claims to have checked over all fittings/filters. Informed to drive the truck to see if it was just an air bubble in the line/loose fuel filter. Pay the $150 bucks for them to turn a light off......

Fast forward 4 days and I am driving back to Fl on Saturday night, I get the same issue, well nowhere to stop on I-10 and no dealer open, I just drive it the rest of the way. Shut the truck off and when I go to take it in no light or reduced power. I showed the dealership the photo and video of the lights on with the OD reading from this time and the print out from the dealer in Louisiana. Dealer in FL keeps the truck for two days and claims they can't recreate the problem and checked over all the filters again, handed another $158 bill because he claims there was only one old code showing from where the dealer in LA had checked the truck out even though I had photo proof of the odometer reading with the light and REP warning.

Fast forward a week from getting it out the shop the second time and I am getting on the interstate, truck shudders and bucks, reduced engine power and CEL. Called the dealer that put the filters on and kept the truck for 2 days, no mechanic on duty on Saturdays. Soon as I turn the truck off the reduced engine power goes away, but the CEL stays on. I have no idea if it will still be on Monday when they open, I once again took photos and videos of it.

Does anyone on here know what might be causing this? I have read all the other post and most everyones were corrected by loose filters, well after checking myself and both dealerships I am pretty sure that isn't the problem. One thing I noticed this time is I had just come out of a regen cycle a few minutes before it acted up. I am only 4k miles away from being out of warranty, which traveling home for the holidays I will cut that more than in half.

Without a scanner of some sort it is difficult to diagnose. I am wondering if you possibly have a bad high pressure fuel pump. Monitoring rail pressure when it occurs would be a good indicator.

The only other thing is the bucking portion of what you explain. could be that isolated issue of sticking valves due to not enough clearance from the factory.

being that close to the warranty with those problems i have heard of guys accidentally losing oil and standing on the gas in neutral and bringing back the truck to ford to fix once and for all.

Horrible advice. Dicks like that ruin it for the rest of us...
 
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Try pulling off the frame filter housing and make sure it has only 1 o ring. Then reinstall the housing and make sure it is tightened where it needs to be. If it has 2 orings, no oring or is over tightened it can potentially cause a leak.
 
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