The disturbing thing is the vehicles are extremely carefully used by professional drivers that is unlikely to misfuel, and all fuel purchases are documented and available for audit.
Low mileage at initial failure suggest something real bad.
The question is, summer is coming --- could it be that if heat is related to failure, that a rash of failures is coming in August?
That --- is the question.
If there is not a rash of failures in the sample by Sept / Oct, then the heat hypothesis did not work.
Pump failure is cumulative.... there is a lag time from when damage starts to when the complete fuel failure occurs, in my observation. I'd summarize data based on a Dec 31st date.
What is the story on GM failures for these model years? Do they correspond also, or is it just based on Ford Data? I am still observing HPFP failures on TDI club now, in warm weather southern tier states... Florida, Texas, etc.
This was discussed ad nauseum at FTE. The general consensus was a return line filter would be a difficult accomplishment.
Debbie and Savannah the Wonderdachsund
2009 Big Horn 3055RL
2006 Chevrolet Silverado 3500 Dually LTX with the Gold Standard LBZ Engine and Allison Transmission
2011 F350 Lariat SRW CC SB 4WD 6.7 Diesel POS Gone Bye Bye
I don't think any filter will help ENOUGH, as the debris is created in several
areas. The worst place is inside the cam cavity. Hammering, cavitation, etc
Rick confirmed that to me when he reported back that the piston bottom that
rides on the cam follower was hammered
That would have the potential of debris floating inside the cam cavity. That would
then have the potential of screwing up the DLC surfaces or any mating surfaces.
Down stream through the intake for the piston/cylinder will have this stuff and
then into the distribution system to the injectors
Return lines abound in this system and yes, a filter in any one of these return
runs can't hurt, but think they won't save it, as the cam cavity is the
source of the debris, IMHO
I'm not sold on the time of year, other than that is when folks crawl out of
the winter dull-drums and go camping clocking many, many more miles.
Think that winter storage also has the heat/cool cycles to condense any moisture
in the diesel system to then create ideal conditions for H2O damage (cavitation
is my main thought)