Dreaded P0087 and P008a CELs presented shortly after fuel filter maintenance. Parked it immediately after the Reduced Power message and it will start. Also present are EGR flow P0401and Reductant Pressure and Leak P20E8/P0202D. Im the 2nd owner, and warranty has expired. Need a go forward plan to resolve. Has anyone navigated this successfully? Dealer vs qualified Diesel repair shop advice? Im in Puget Sound area of WA. (The build date is May 2011) lovin this truck but it stopped lovin me back.

 

Don't know if this would cause your error codes if you didn't do it but did you prime the fuel as described in the owners manual after replacing fuel filters?

 

Yes, eight 30 second air purge key twists. This one was uneventful like the previous three, since i took possession with 48K miles. This time, 100 miles later, the CELs popped at hwy speed 70 mph. The next time the key is turned, it will be under the supervision of a diesel diagnostic service. But where to tow it - a reputable private diesel shop specializing in 6.7 powerstrokes for example, or a ford dealer? My 3 year 36k service plan has expired.

 

I vote for a reputable private diesel shop specializing in 6.7 powerstrokes

 

That's a lot of DTC's at once. P0401 is a restricted/plugged EGR cooler core and one I have experience with. It makes the truck a nearly useless tow vehicle up hill due to reduced power. I agree, a respected private diesel shop/technician.

 

Or if a emissions delete would take care of those error codes I would invest the money into the delete kit.

 

Thanks for the insight! hadn't considered deleting, but now im keen to know more. Im resisting the temptation to jump to any root cause conclusions, and im mostly concerned about the low fuel pressure DTCs. Before i go about selecting a repair option im hoping to better educate myself on the potential choices and how to avoid a mistaken approach. when to consider aftermarket vs ford parts as an example

 

First diesel repair shop i spoke to immediately jumped to the conclusion that the hpfp has failed, just due to the existence of p0087 DTC. Ill call a few more and get a better idea of the different approaches shops take to diagnose.

 

A shop should be able to prove that. If you find one you like and their initial offer is to investigate first (vs jump to conclusions), pay their diag fee and see what they find.

 

I'll report back with resolution and cost

 

If all of these DTCs triggered at once, I'm interested to know what they find. The SCR doesn't have anything to do with fuel (other than the modules calculating how much DEF to inject based on load) and the EGR cooler won't plug from one tank of bad fuel, for example. "If" you've got HPFP issues, be prepared that the cost is painful if it already circulated metal bits. From indirect experience with a work 6.7L, it's north of $9k dealer price.

 

Would a Ford dealer provide any guarantees regarding the quality of repair that a private repair shop would be unable to provide?

 

A dealer will warranty a new OEM part per this attached documentation. I would ask the independent shop what they warranty post repair. I don't know with certainty if an independent is an "installer" (makes since they are) but my experience (not Ford) an authorized independent should warranty the new OEM part through the OEM if it also fails but the previous labor and new labor is still customer paid. If properly installed, it's not the independent's fault a new OEM part fails early. If you don't get the answer you are wanting and you're looking at an expensive repair, then you have to consider the higher dealer rates as an option because you know you'll get two years on that replaced component.

This is the source URL if you choose not to open the attached PDFs.
https://parts.ford.com/en/us/resources/parts-warranty

 

These pdfs are golden. This is the key decision criteria for sure. Thanks immensely!

 

Truck is back from the repair shop. HPFP failure, no specific root cause. The shop got me back up and running. Truck is lovin me back again, and I'm 13 G notes wiser (poorer?). Replaced the lift pump, hpfp and upgraded to vt37 turbo using all '15+ components. 2yr Motorcraft warranty on all parts. All other issues are no longer issues and i cant conceal my grin.
Happy T day indeed!