Fords 6.7 Scorpion Diesel motor

Fast Mopar wrote:

FishOnOne wrote:

A couple of years ago I helped out two couples on two different occasions stranded on I10 and one of those couples was on the lower part of a curve which was a very bad place to be stranded on a fast paced highway.

BTW... Those two trucks were RAM 6.7 cummins. I would hope no one, especially a older couple not knowing what to do get in a bad spot. I suppose their peace of mind was to unload those trucks but who knows.

Last time I checked, this thread was supposed to be about someone asking about the 6.7 Powerstroke, not the Cummins. But, I guess it was too much of a temptation to not jump on an opportunity to bash Rams.

Just to add to your statistical record about roadside breakdowns, I have had exactly two family vacations interrupted by transmission failure, leaving us on the side of the road and costing us a lot of time and money. Both vehicles were properly maintained Fords. I got over it, and hopefully I will buy another Ford in the future. I just have never felt a need to blast a brand because of a couple of really bad experiences. But, to each his own.

We understand your disdain for Rams. Believe me, we do.

Fast Mopar (High ironic... :W)

I was simply stating a some experience with the RAMs to the other poster who stated he feels more comfortable driving around the country in his RAM.... Perhaps not everyone agrees! :R

The Mad Norsky wrote:
1Longbow:

well, as you see here the Ford 6.7L gets some pretty passionate debate going.

As I previously stated, I think, aside from the fuel pump itself, that it is and will be a pretty good motor.

I did previously own a 2011 F 350 with the 6.7L, and it proved to be a trouble free motor. I had already planned on trading sometime in the spring of 2015 when I just ran into a deal too good to pass up in late September and traded then instead. Got a new Ram 3500, which was always my intent anyway, whenever I traded.

I've owned all three major diesel pickups and had pretty much trouble free performance from all. Mind you I do trade about every four years of so, so perhaps my mileage has not been high enough on any of these to give an accurate long term reflection of any particular vehicle.

It may rest your mind somewhat, and reflect also on those posts from 6.7L Ford owners who praise their vehicle, that the fuel pump problems discussed here, at least on the Ford part, show up so far in only about three percent of total vehicles.

At least about a year ago, it was reported at about the three percent of total vehicles had a fuel pump failure. I have not seen or read any current figures for this.

So rest assured that it does appear 97% of owners of the 6.7L diesel are having no major problems.

I was one during the time I owned the vehicle. However, due to fuel lubricity concerns, I always added a lubricity additive to my fuel tank, each and every time I filled.

I mostly used the Ford product that they recommend in the owners manual, which is their PM-22A additive, found at most all Ford dealers.

I will leave you with a link to a hotshot trucker from YouTube. He has (at time of this video) 196,000 miles on his 2011 Ford F-450 with the 6.7L Scorpion diesel engine hauling cars from the Denver area to Arizona.

The engine itself seems to have been fine for this guy, but as he is seriously loading, perhaps overloading the vehicle, he has had rear differential and tire problems.

A day in the life video Ford F-450

Let's clarify...

The pump failures are 0.01% and not 3%.

DirtyOil wrote:
Just read this on the interweb:

Ford provides employment to 40% of the US population...38% which are Ford mechanics.




Ford, helping stimulate the economy, 1 mechanic at a time! :B

Well that funny :B... My cousin has been a Ford diesel tech since '93 and a couple of years ago has been transferred to the Chrysler shop to work on RAM/Cummins do to the lack of repair activity in the Ford shop and perhaps the increase in Cummins drivetrain repairs. :W

He's works for a dealer that sells both Ford and Chrysler products.

Just read this on the interweb:

Ford provides employment to 40% of the US population...38% which are Ford mechanics.




Ford, helping stimulate the economy, 1 mechanic at a time! :B

:h

Getting my abacus out, 400,000 times 3 percent figure from my earlier post says it equals 12,000.

Never put a number to that 3 percent figure before. That is a LOT of vehicles.

Of course, it still leaves 388,000 happy customers. :B

C-Bears wrote:
So to sum all these issues with the Ford's 6.7 up, maybe out of 400,000 produced and sold every year there are 100 or so bad ones?

I mean, are there any actual numbers out there that proves the 6.7 is not as reliable as maybe the Cummins in the last 4 years?

I realize there are going to be bad motors produced and I sure hope I do not have one, but surely no ones thinks it is that common.

So if the numbers are that small, why doesn't Ford step up to the plate and cover the failures under warranty like the other makers do???

C-Bears wrote:
So to sum all these issues with the Ford's 6.7 up, maybe out of 400,000 produced and sold every year there are 100 or so bad ones?

I mean, are there any actual numbers out there that proves the 6.7 is not as reliable as maybe the Cummins in the last 4 years?

I realize there are going to be bad motors produced and I sure hope I do not have one, but surely no ones thinks it is that common.

Most of the issues that plague modern diesels is emissions related (DEF, DPF, HPFP, and all the sensors that go with it) which all three share to some degree. WHen it comes to the motors themselves as well as the drivetrain they are all fairly reliable.

If you live in an area that does not do emissions checks buy a tuner and delete all the emissions garbage and you will have a more reliable truck than any of the three can produce from the factory. The flip side is your powertrain warranty will be gone once you load a tune since all the new ECMs since about 2007 leave a footprint.

So to sum all these issues with the Ford's 6.7 up, maybe out of 400,000 produced and sold every year there are 100 or so bad ones?

I mean, are there any actual numbers out there that proves the 6.7 is not as reliable as maybe the Cummins in the last 4 years?

I realize there are going to be bad motors produced and I sure hope I do not have one, but surely no ones thinks it is that common.

1Longbow:

here is one more for your viewing pleasure. Comes from YouTube, PowerStroke help guy. He finally gets his hand on a 6.7L Scorpion engine.

Some insightful comments made during the video. He also covers the main bearings, and their lack of keying to hold them in place, as mentioned by a previous poster.

Link: PowerStroke help critiques the 6.7L Scorpion motor

The 6.7 was a mixed bag.

Light years ahead of the 6.0 and 6.4 in dependability. But when you had a catastrophic failure it was big bucks for someone. Here are some of the common problems.

Quite a few dropped valves and blown engines.


Lots more bearing failures


More engine problems


Quite a few spun bearings.



Lots of turbo problems



Lots of turbo problems

Now, all that being said Ford supposedly fixed these problems (or most of them) with the 2015 engine. Problem is, we won't know for sure if all of these fixes worked until years from now.

The turbo is easy to fix. They got rid of that stupid twin compressor wheel and went with what everybody else has. :)

The valve problem is also easy to fix. Just make the valves out of good material. :)

The bearing problem is troublesome because there was no retention for the bearing (or least I was told by people in the know). IOW's there is not tang, it's just a round shell. Weird way to make a bearing and retain it in a motor IMHO. :R