no doubt a bad design. My point is their isn't a good fix. Just got to run it till it blows and fix. Likely good off it happening to yours is very low. Is be more concerned about upper pan leaks on these 2020+ trucks costing us 10k plus at dealers or 6k at private shops. That is something that will happen to all of us!


Trust me, i have been blasting ford for the last month about the cheap *** pathetic upper pan design making the cab and motor removal to do the seal change!
not many paid attention to that forum, as they didn't understand it. Probably 8/10 of you will wxperiwnce the expensive upper pan leak way before the cp4 and upper pan costs similar to the cp4 to change.

 

extended warranty and a DCR pump would be my go to solution if I keep my truck for many years and plan on putting, say 200k+ miles on it.

yes it will cost about $4k for the two of those. But if that’s the ceiling for any major repairs on the truck that’s not bad for any of these modern trucks. Beats paying the high price of fuel system replacement or upper pan seal replacement.

why not just control the cost and enjoy the truck. If you’re that concerned then it’ll ruin you attitude and ability to just be happy anyways.

PS—the GM you’re thinking about will not be free of maintenance & repairs. It’ll still cost you money. So pick your poison, protect yourself with good maintenance, some aftermarket support, maybe a good extended warranty if you’re using the truck like a truck and enjoy your life some more n

 

upper pan has nothing to do with fuel system whatsoever.

No fix for it, and it's not a problem it leaks, all diesels leak. It's the process if repair. Dmax will cost about 1k to fix. 11-19 ford AROUND 2k. Cummins around 1k as well. 2020+ ford 6k at aftermarket shop (cheapest around my area i priced).
I am more worried about that then cp4, especially since mine is in 100 peices right now on a lift with the motor completely out of the truck. Wondering how many plastic clips will get broken, and how many more trips back to dealer will be required. Turbo is off as well, hope they replace the boots! 21k miles.

Probably be back at for sure before 100k, but i wont own the truck then!

 

Arod did a video of installing the DCR pump on a 21 Tremor a month or so ago. Did S&S stop selling for the 20+ trucks since then?

 

Perhaps if you slow your typing and speed up your reading you might not sound so ridiculous? Nobody has stated that the DPK will prevent damage to the fuel system in all cases of CP4 failure. If it "100% grenades badly" as you say all bets are off. However, for the folks who have failures that don't fit that category there is an excellent probability they will simply have to replace the pump, replace the tank return filter and maybe flush the tank return lines.

So you are saying that Ford engineers, even with their billions of $$ in R&D and untold gigabytes of data on these trucks, still hasn't addressed the issue and continues to use a pump with a known, critical flaw. Got it. So what was the point to your supposed question? You did say "Let me ask you this..."

As far as your criticism of "Chinese made ****" where it is made has little to do with quality when the proper manufacturing specifications are created and followed. Please share real data with all of the problems with the S&S DPK kits that have been sold and installed. We'll gladly read the information.

Right - the answer to a problem is to buy another vehicle that will come with its own set of problems. I love how people talk about Cummins / Duramax / etc. as if all the others never have issues. EVERY brand has issues - and if you are one of the unlucky ones who suffers a failure no amount of explanation is going to take the sting of that failure away. I have a GM loving friend - and he has had his share of issues with several Duramax trucks. They are all designed and built by people. The corporations those people work for make financial decisions that affect how the final product is built and sold. All corporations have to balance the cost vs what the market will bear for price. Get over it - none of them make perfect products. Google "Duramax needs a lift pump" for a gazillion examples of how your beloved Duramax isn't so perfect after all... I will give credit - after 16 years GM did finally start installing lift pumps on the Duramax trucks.

 

extended warranty for a couple thousand could move covered something like the upper pan leak, though. That’s where I was getting at the whole idea of protecting the cost ceiling in this way.

now I don’t know the possibility of such a plan on your truck regarding the mileage you have on it…but I was just saying if someone is buying any modern diesel of any brand and planning on running it into high mileage its a good idea in my opinion.

 

no I think you can run the 11-19 DCR but have to make some slight modification and S&S doesn’t want you to have to do that. They want a completely trouble-free kit to install for every engine setup.

remember the DCR isn’t a brand new pump. It’s a pump that’s been used successfully in other applications and what S&S did was work with Stanadyne to adapt it to directly fit super duty. So the parts around the pump are what I think they’re working on before they want to officially call it a 20+ pump

 

100% agree with you on the extended warranty!

 

The warranty only helps with one issue, the cost of the repair itself. Currently there are larger issues with the parts supply and finding a service dept with the time to do the work in an expeditious fashion. Warranty for the cost would be the least of my concerns with a truck about to be laid up for months or even just weeks. Lost time can easily add up way beyond the cost of the repair. Being hamstrung by a warranty often works against you.

 

I still don't think CP4 is that big of an issue. Just two threads in the past week on it. Have not seen any threads much on the topic. If its that large where are the two post or more a day on the failed pumps. All the threads have been about the "disaster kit" and if they should install that disaster.
in case you are wondering R&D department would change it if the failure rate increases, becuase they have to warranty the crap, that costs ford money! Also, the engineers are given a budget in each department, and make revisions with that cash. The amount of revisions exceeds the cash the get alloted. This results in some things not getting changed. Their data of failures is still pretty low (believe it or not), so they invested the money into other things for improvements. The "ford" knows what they're doing kinda thing is BS and that "they purposely leave it like that is bs". The engineers would like to make many more changes but the budget doesn't allow, so they have to hit the biggest first and trickle down to the smallest parts. I also find changing fuel filters at 10-15k is best. Always have till recently on my f450 as its under warranty.

 

Very interesting article, it seems to indicate that the CP4 has a MTBF (mean time between failures) of 100,000 miles and they seem to recommend replacement by 100,000 miles. I have a couple of questions so I can plan for failure contingencies.

1)Do other pumps fail around the same time and is the notoriety of this pump only because of the extensive damage done by its failure?

2)Do other pump failures, all will fail at sometime, leave you stranded?

3)Will a DPK allow a failed CP4 allow you to limp to a shop?

 

on #3, yes provided the failure isn't a blown seal that pours fuel out. S&S has the video where they purposely damaged the CP4, installed it in the truck with their DPK and return filter installed and drove it until it could no longer pump fuel. There will be plenty of warnings prior to the total failure point, so you could be able to drive it in for repairs. They tore the fuel system apart and found NO debris in the high side or in the tank.

It's an insurance policy, just like what you pay for every month to drive it. Is it infallible? Nothing is, but it does provide insurance that the major expense is alleviated and just flushing the return line and replacing the filter along with the CP4 is all that is needed. If you continue to drive with a damaged CP4 and it does get junk into the HP side, well, only person to blame at that point is you.

If you go shooting without hearing protection and you can't hear later, are you going to blame the gun manufacturer? Same can be said about this. It is a known issue and there are ways to maybe not fully prevent it, but added protection to the rest of the fuel system. It's $400 and a few hours of time to install and can save $8,000 or more if the pump Does fail. Why would you not do it?

Nah but go ahead and bitch at Ford and pay the high cost for full replacement instead. Ford doesn't care, nor does GM or RAM for their failures.

 

I am not complaining I am just planning for the future for a 4 month old truck. Adding a DPK may void my new truck warranty.

 

If improperly installed and it DAMAGED something, then it could, but properly installed will not. They have to PROVE it caused damage in order to void a warranty. This isn't a power adder, or engine modifier, its a fuel line splitter, it adds a second line and a machined block between the pump body and the fuel flow regulator. No different than adding a catch can or similar device.

The kit blocks flow between the crankcase and pump heads and adds a separate feed line for the pump heads, isolating the pump heads from the crankcase where the damage happens. Return fuel from the crankcase goes back to the tank through a filter while return fuel from the pump heads is via the high pressure regulator in the rails.

 

That install was on a 2021 and no mention was made of any modification he had to make to make it work.
I posted that question on the video comments, hopefully get an answer.