I looked at the video and he didn’t even talk about the rotating bearing problem

but it did illustrate the consequences

 

As an engineer it is almost unbelievable that they designed this thing with absolutely nothing to keep the roller cam follower from spinning off axis.

 

Looks like I'm gonna go with the S&S gen 2 kit. Love that 2 micron filter set up. All plug and play now also.

It's interesting how that dude in the last video reinstalled a new DFCM. I've heard a lot of guys say from different shops that it's a solid unit.

I also learned to not install the AFE DFS 780 on the outside of the frame rail. I believe it can be mounted on the inside as it comes with long enough lines.

Great posts guys. Thank you.

 

Off axis problem

i saw a tear down of the cp4 and noticed 4 triangle shaped holes at the top of the bearing seat cup....I’m wondering if the intent was that fuel pressure would spin the cup into the correct position? Side note...we had posted a Ford video which pointed out we were all starting our push button trucks wrong...the button gets pushed....then after x time...the brake gets hit....wondering if this is to allow correct lift pump pressure to spin the collie into position. I can dream in any event.

New s&s offering

Yes, the new s&s product addresses most of the design flaws of the cp4 DPK we had talked about in various threads and goes s long way to minimize the causes of why folks with these DPK are still getting complete fuel system failure once the bearing blows. The 2 micron filter is a big improvement since the injector nozzle holes are 6 micron. The stock metering valve screen is 80, the energy screen 25, the SOE exofilter is 20, tank filter is 20 and engine bay filter is 5, so the s&s return filter will do the trick.


im happy to see both companies addressed the 1 inch travel path that can get backed up with flakes and cuase entry into the main fuel system ...the both did this be increasing the fuel path to the bearing by over 1 foot, it would take a lot of metal flakes to back up a length that long .

spe DPK ordering fulfillment issues

for this of us that both the spe DPK when it was announced mid nov, we are still in limbo. They sent everyone 2011-2016 kits and sent email saying not to try to install on 2017-2019 (which is what I have). Aside from that I was missing a critical part . The main manifold that goes into the metering valve hole was drilled off center so I have zero wall thickness on one side and SPE installed a steel plug into that hole resulting in a small hump which may interfere with the seating of the metering valve.

I was going to install mine this week but all these issues are not salvageable for December anyway.

so far, no response on emails or calls concerning joe how the incite t kits will be mitigated to be correct kits....are they going to send adjusted parts...do we send wrong kit back and wait for new ones....who knows.

 

One more decent one...

 

Rumors are that RAM has gone back to an updated CP3 for the 2021 model year. Nothing confirmed or denied yet. Could just be the updated CP4.2 that others have mentioned for Ford. The Denso that GM switched to in 2017 has been doing well so far.

 

Interesting thanks. That Denso pump sounds robust.

A Google feed link:

What Is CP4 Injection-Pump Failure?

 

H&R Herrington & Richards or something like that?

 

I think it has actually gone beyond rumor.
Over on the Cummins forum, a guy drove this 2021 home yesterday and took a pic



It is a little different than the one in my ‘18; but it is definitely NOT a CP4.

 

Just when I was starting to really love my new 2020 F250 over my previous 18 Cummins that got away... I've gotta learn that my beautiful Ford will eventually grenade on me, sometime after the warranty expires, and we can't ride off into the sunset together past 200k.

Hopefully a truly flawless disaster prevention kit or, miraculously, a recall/FSA happens, to help put our worried minds at ease.

I'm both thrilled to learn about this cp4 and heartbroken because it's now planted the seed of unreliability, whether it's going to ever happen or not, whether it's a legitimate fear or not, just like the fear of crashing while flying, I now know about it every time I get behind the wheel.

 

All I do know is that Cummins has and is still using the CP4 for other applications/engines; so IDK.......is this just between FCA and Cummins or what.
I also know that there are many CP4’s in the 6.7 Power Stroke that have never had any issues that we never hear of on the ‘net.
I also know that the ‘net has a way of blowing things way out of proportion.
I also know that I wish you the best of luck with your new truck.

 

Daww shucks, thank you! And you with yours!

All valid points. The internet has a way with making you panic over nothing!

 

https://hs-motorsports.com/collectio...=7149513801785



I believe Fritz was talking about this.



It has extra fittings on the head or manifold if that is what he meant, I'll assume.

 

Only problem with the HSM kit is that filter is only 10 microns, so it's really of no benefit other than higher fuel flow. I have one, but I also have a FASS with 2 micron filters on the unit, more or less the only thing that upper filter I have from HSM is a fuel distribution block, it doesn't do much else.

 

So bottom line up front, currently no disaster prevention kit really solves the problem?

That is, even if the design is solid, there seems to be Quality Control problems? And where the QC is right, the specs/design is a bit flawed? Am I reading into the reviews correctly?

I'll just be a little extra careful with my fuel station choices, priming the fuel system after filter changes, and even being mindful of each start up by keeping the ignition on for several seconds before turning the engine over.

All are habits I've always practiced with my diesel trucks, to begin with!!

But if the cp4.2 are truly grenades, then that's got to be fixed by Father Ford.