First time post, Hope I can get some good advice
Had to take the 2015 in because the truck (62K miles) went into limp mode without warning. They replaced sensors DC3Z 9D378 C and DC3Z 9D37. $1809.00 later I was
back on the road. I was under the impression there is an extended warranty for 100K or 10 years on emissions. When I asked I was told because the sensors gave CODE P270F
they could not warranty them. However if they gave another code they would have covered the warranty. I proposed the question , Isn't the same parts still defective
no matter what the code says? They are sensors and for what ever reason failed, I see it is failed part. Am I missing something in my logic?

 

Can’t answer your question but nox sensors can be labor intensive if they are rusted in…mine had to be cut out with the truck having only 22k miles.

 

As to the standard factory warranty,

Your truck has a 36 month or 36,000 mile bumper to bumper warranty. 5 year, 60,000 mile powertrain warranty and the Powerstroke Engine has a 5 year 100,000 mile warranty.

As to the NOx sensors, here's a thread... there's also threads here.

https://www.powerstroke.org/threads/...21e01.1388484/


From that thread:

https://www.powerstroke.org/posts/16493013/

So to clarify some of the confusion here, FSA 21E01 PCM reprogramming corrects a software defect that sets specific DTCs and illuminates the check engine light when your upstream NOx sensor, downstream NOx sensor or the SCR catalyst has failed. In layman's terms that simply means you currently could be rolling around in a busted azz truck that is also not compliant with emissions regulations.

After FSA 21E01 is completed THREE additional FSA's become active to provide coverage for the related components.

1. 21N02 - Upstream NOx sensor
2. 21N05 - Downstream NOx sensor
3. 21N06 - SCR Catalyst

Since the PCM is currently not capable of detecting the faulty components on the affected vehicles an existing failure will become evident once the PCM reprogramming has been completed.

>>The three listed subsequent programs provide coverage for 12 MONTHS with no mileage restrictions. If a pre-existing fault exists it will likely become evident in a very short period of time - Ford has your back but it's not an open ended deal. These Customer Satisfaction Programs expire twelve months after Emissions Recall 21E01 is completed or December 31, 2024, whichever occurs first. After that any warranty coverage for the related components would likely fall under emissions or an extended warranty if coverage applies.<<


^^^^I don't know if this applies to you but I would look into this...^^^^^



From this link for the MY2015 warranty booklet from Ford:

https://www.fordservicecontent.com/F...US_01_2014.pdf

5. Federal requirements for emissions warranties

EMISSIONS DEFECT WARRANTY COVERAGE

During the warranty coverage period, Ford Motor Company warrants that: • your vehicle or engine is designed, built, and equipped to meet - at the time it is sold - the emissions regulations of the U.S. Environmental Protection Agency (EPA). • your vehicle or engine is free from emission-related defects in factory-supplied materials or workmanship, which are defects that could prevent the vehicle or engine from conforming with applicable EPA regulations. • you will not be charged for diagnosis, repair, replacement, or adjustment of parts containing an emissions-related defect. Applicable parts are listed under What is Covered? on pages 20-21. The warranty coverage period for: • Passenger cars, light duty trucks (applies to vehicles up to 8,500 pounds GVWR) — The emission warranty coverage period is 8 years or 80,000 miles (whichever occurs first) for catalytic converters, electronic emission control units, and onboard emissions diagnostic devices. — All other parts covered under your emissions warranty are warranted for 3 years or 36,000 miles whichever comes first.

>>>• Heavy duty vehicles (applies to trucks over 8,500 pounds GVWR up to 19,500 pounds GVWR) — The emissions warranty coverage period for heavy duty vehicles (HDVs) is 5 years or 50,000 miles (whichever comes first) for all parts covered by your emissions warranty. • Only for HDVs not designated as vocational vehicles on the underhood VEHICLE EMISSION CONTROL INFORMATION label: The 5 year/50,000 mile warranty includes coverage of components whose failure would increase the vehicle’s emissions of air conditioning refrigerants. • Only for HDVs designated as vocational vehicles on the underhood VEHICLE EMISSION CONTROL INFORMATION label: Tire defects that affect compliance with emission standards are covered for 2 years or 24,000 miles, whichever comes first.<<<<


EMISSIONS PERFORMANCE WARRANTY COVERAGE

Under Emissions Performance Warranty Coverage, Ford Motor Company will repair, replace, or adjust - with no charge for labor, diagnosis, or parts - any emissions control device or system, if you meet all of the following conditions: • You have maintained and operated your vehicle according to the instructions on proper care in the Owner’s Manual and this booklet. • Your vehicle fails to conform, during the warranty coverage period, to the applicable national EPA standards, as determined by an EPA approved inspection and maintenance program. • You are subject to a penalty or sanction under local, state, or federal law because your vehicle has failed to conform to the emissions standards. (A penalty or sanction can include being denied the right to use your vehicle.) • Your vehicle has not been tampered with, misused, or abused. The warranty coverage period for: • Passenger cars, light duty trucks (applies to vehicles up to 8,500 pounds GVWR) — 8 years or 80,000 miles (whichever occurs first) for catalytic converter, electronic emissions control unit, and onboard emissions diagnostic devices. — 2 years or 24,000 miles (whichever occurs first) for all other covered parts .

>>>• Heavy duty vehicles (applies to trucks over 8,500 pounds GVWR up to 19,500 pounds GVWR) — 5 years or 50,000 miles (whichever occurs first) for all covered parts.<<<

See WHAT IS COVERED for list of covered parts. Note that the warranty period begins on the Warranty Start Date as specified on page 2 of this booklet.


There's also the list of what's covered...

And that listed above is for the Federal Emissions and NOT the CARB states, which is different than above...

 

I had my tail pipe NOX sensor go bad after the recall replaced it in 2021. July 11,2024 miles away from my Ford service center warnings on dash, check engine , WRENCH, several times, DEF regen, $ 300.00 diagnostic, NOX sensor cannot be removed from tail pipe. ONLY solution replace tailpipe for $1300.00 , then pay for another new NOX sensor. Tailpipe was not in stock so I dropped my 5 th wheel at a camp ground and waited until tailpipe arrived. Total cost $ 2810.79. I sent a letter to FORD with all documents for the repair, asking for some kind of payment at least for the tailpipe. Waited 90 days for a BIG FAT DENIED!
I think someone at FORD would hopefully redesign the NOX sensor/ Tailpipe issue. $ 325.65 NOX Sensor, $ 1300.97 Tailpipe ????? REALLY

 

They are selling a lot of tail pipes and labor to replace.

preventable…maybe

copper or nickel anti seize compound on all nox, O2, and egt sensors might help

or…welding certificates for select techs…cheery red heat the bung to facilitate removal of sensors…or…not bother and just welding new bung.

in any event….i tried removing my tail pipe. Ox sensor at 20k miles..wouldn’t come out. Did a tail pipe upgrade so wound up buying new nox sensor. Just out of curiosity I wanted to see what it would take to remove the old nox sensor which I no longer needed. Penetrate did not work. Sensor sockets did not work. Heating the bung with mapp did not work ( not cherry red). Wound up cutting a slice into the bung, then using a large angle chisel to open the cut. It did come out but the bung was destroyed.

so going forward, not going to even bother trying to remove, will drill a hole, weld in a new bung, and install new sensor. Might be a problem with metal particles and leading side of scr and dpf, but trailing side should be fine.