Fords 6.7 Scorpion Diesel motor

N-Trouble wrote:

FishOnOne wrote:

N-Trouble wrote:
I don't even spend much time on PS forums but the times I have recall several CP4.2 failures that Ford was ducking warranty on owners with the "water in fuel" excuse. You rarely hear that on the Dmax forums which I do spend a lot of time on.

Aside from the HPFP failures 6.7s had more than a few turbo failures due to ceramic bearings turning to dust. Believe the new turbo on the 15s is suppose to address.

Overall I would say the 6.7 is a good motor at least for Ford when you consider their diesel track record for the prior 10yrs. Still wouldn't get me in one though.

Did those HPFP failures that Ford was ducking have internal rust?

Turbo failures increase with the use of a tuner.

Does GM cover HPFP failures that have internal rust? Of course they don't.

"Internal rust" has not even been mentioned on the Dmax forums so not sure where you coming up with this info. GM for the most part is warrantying them no questions asked. Can't say that for Ford. If Ford wasn't having turbo issues then why a new turbo after only 3 years?

Internal rust has never been mentioned in any VW or Audi HPFP failure that I have read about either. They have found rust in the fuel filter canisters, but not in the pump directly. The fuel/ water filter trap is designed to prevent that from ever happening.

What I am saying is that it sounds like somebody lied to cover their aZZ with that write up for that particular HPFP failure R&R job. And there have been many, many, many more HPFP failures in VW's than Fords, and that excuse is pretty much missing from the files for cause of failure.

Another big lie was that VW was claiming that there was misfueling, that there was gas in the fuel. NHTSA requested that they support their claim. Next thing you know, every time your VW or Audi came in for the free oil and filter changes, at 10, 20 and 30k miles, VW/Audi swiped a quart of fuel out of your fuel tank for analysis, without your permission or telling you, for sampling, without compensation. They kept on looking for gas in diesel fuel samples, and embarrassingly, they had to show the results to NHTSA and Bosch as well, and all of their testing for gas in diesel fuel pretty much came back negative. Next thing they did was campaign with bright yellow decals and a rosette ring around the filler cap, because they felt the owners were too stupid to differentiate diesel from gasoline during fillups. Then they put stupid devices in the filler necks that would only allow diesel fuel nozzles, not gasoline nozzles.

Guess what? The HPFP's are still failing in Jetta's from 2009 clear through 2014, with all the "safety features" and claims to prevent misfueling with gasoline. You Ford and GM /Chevy people should have something like this going on your Bulletin Boards...

Official High Pressure Fuel Pump Failure thread

VW has gotten tired with Bosch's claims, they take every single pump back to Bosch, document everything, load these pumps by the pallet for shipment back to Germany.

VW letter of intent.


You can bet Vw is making Bosch eat it $$$$ wise on these fuel system failures due to Bosch not doing failure analysis before selling the pump to countries will low lubricity fuel standards like in the USA and Canada. Most of the fuel in Europe has wear scar figures of 200- 320 microns, USA, 520 micron (much bigger from fuel with far less lubricity) wear scar figures. Bosch introduced this pump to USA, claiming suitability, fully knowing the lubricity standards of the petroleum industry in the USA and claimed "suitability of use". All of this is on Bosch.