CP4 Failure
Hotshot
Joined: Oct 2006
Posts: 10,127
Likes: 7,930
From: Texas
Nope……nothing is trouble free. But there are manufacturers thqt admit something is not as it should be and try to remedy the situation. Ford has yet to admit the CP4 is problematic and address the issue.
Cargo Master
Joined: Mar 2021
Posts: 2,043
Likes: 1,333
now considering they haven’t, I choose to put them on when a truck approaches end of warranty. It’s such an easy preventative measure to take to get the benefits of the diesels capabilities on the crews where it’s preferred.
again we also have crews towing closer to the 10k range that we prefer gasser. But on the crews where they’re consistently hauling heavier stuff like over 16k they use the diesels for how much better they do the job.
Mountain Pass
Joined: Jul 2018
Posts: 153
Likes: 37
Dpk would’ve turned that into just a couple thousand and a lot less work to get running.
I love the 6.7 and its capabilities but I don’t understand folks who don’t spend a few hundred on a dpk to contain the cp4 to a simple fix once they’re out of warranty. It’s so simple to do and it’s night and day if the fuel pump goes bad.
I love the 6.7 and its capabilities but I don’t understand folks who don’t spend a few hundred on a dpk to contain the cp4 to a simple fix once they’re out of warranty. It’s so simple to do and it’s night and day if the fuel pump goes bad.
Cargo Master
Joined: Mar 2021
Posts: 2,043
Likes: 1,333
Also the kit for them…..if ford were to install one would be nowhere near 2k
i think for a cost of a couple hundo ford could put a kit on from the factory. Would be great for sure. But I’m mechanically inclined and don’t have a problem doing it myself.
I also know a lot of guys who don’t/wont put any aftermarket stuff on their trucks for lots of reasons……and there are also lots who don’t realize it could be a problem because they’ve never dealt with a pump going bad before.
To me it’s wild that people are running around out of warranty and letting their whole fuel system become exposed. I’m not one of them so for me that risk is mitigated for a few hundred dollars and few hours of my time.
Hotshot
Joined: Oct 2006
Posts: 10,127
Likes: 7,930
From: Texas
Ford should install a more robust HPFP from the factory. Then a DPK is not needed.
Cargo Master
Joined: Mar 2021
Posts: 2,043
Likes: 1,333
but as S&S has shown with their DCR pump you can fit a good pump there still.
but at a minimum dpk makes it a much different story
”hey my pump went back so I had to spend $2k on a new one to get put in…took a couple days”
VERSUS the OPs story
”hey my pump went bad I’m spending $12k and truck will be down couple weeks”
More Turbo
Joined: Oct 2023
Posts: 700
Likes: 478
I can understand the first time buyer who isn't into trucks and just doesn't know the history of Continuous Problem #4 aka CP4. Those buyers I can sympathize with. Ill never understand the powerstroke loyal buyers who are aware and after initial purchase willing to dump out of pocket money into a truck to prevent major damage from a known factory fitted part that should have been done away with. Then after one prevents tens of thousands in repairs they are ok with still a few thousand in repairs for the defective part.
Is the Ford really worth the gamble on the CP4? Ram and Gm both make nice trucks and dont require you to fix their known design flaws out of your own pocket.
Is the Ford really worth the gamble on the CP4? Ram and Gm both make nice trucks and dont require you to fix their known design flaws out of your own pocket.
Mountain Pass
Joined: Dec 2017
Posts: 143
Likes: 54
From: Kalispell, MT
It is interesting to think that most people that own Ford diesel trucks are not on forums like this and are blissfully ignorant of the potential for a CP4 failure. The vast majority of them will drive their trucks, perform the required maintenance, and never give it a thought because it won't fail during the time they own it. I have a good friend who owns a home construction company. He bought a used '19 platinum with 100k on the odometer from the local Ford dealer. He also bought the longest extended warranty he could get and the full maintenance plan. Despite being a contractor, he isn't the least bit mechanical. The truck goes to the dealer for maintenance and his involvement with the truck is limited to driving and putting fuel and def in it. When the warranty expires he will get another used one with the same additional coverage. I haven't even broached the subject of potential CP4 problems with him. I just told him to make sure to run diesel from busy stations and make sure that maintenance gets done. This is his first Ford truck and his first diesel so I hope he has a good experience.
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Cargo Master
Joined: Mar 2021
Posts: 2,043
Likes: 1,333
I can understand the first time buyer who isn't into trucks and just doesn't know the history of Continuous Problem #4 aka CP4. Those buyers I can sympathize with. Ill never understand the powerstroke loyal buyers who are aware and after initial purchase willing to dump out of pocket money into a truck to prevent major damage from a known factory fitted part that should have been done away with. Then after one prevents tens of thousands in repairs they are ok with still a few thousand in repairs for the defective part.
Is the Ford really worth the gamble on the CP4? Ram and Gm both make nice trucks and dont require you to fix their known design flaws out of your own pocket.
Is the Ford really worth the gamble on the CP4? Ram and Gm both make nice trucks and dont require you to fix their known design flaws out of your own pocket.
I keep mine stock under warranty. no money needed up front.
once that period is up a dpk can go on for a few hundred.
my fords haven’t been any more expensive overall to operate than ram or gm counterparts.
couldn’t I say the same about the transmissions in my dodges? “Why buy a truck meant for hard work and then when I work it hard it’s gonna cost me downtime & thousands of dollars just to replace the transmission that should’ve lasted longer?”
If I have to replace just my hpfp once during ownership it’s not the end of my life. But I can say I’d be a lot more pissed if it messed up my whole fuel system.
More Turbo
Joined: Oct 2023
Posts: 700
Likes: 478
Lol
I keep mine stock under warranty. no money needed up front.
once that period is up a dpk can go on for a few hundred.
my fords haven’t been any more expensive overall to operate than ram or gm counterparts.
couldn’t I say the same about the transmissions in my dodges? “Why buy a truck meant for hard work and then when I work it hard it’s gonna cost me downtime & thousands of dollars just to replace the transmission that should’ve lasted longer?”
If I have to replace just my hpfp once during ownership it’s not the end of my life. But I can say I’d be a lot more pissed if it messed up my whole fuel system.
I keep mine stock under warranty. no money needed up front.
once that period is up a dpk can go on for a few hundred.
my fords haven’t been any more expensive overall to operate than ram or gm counterparts.
couldn’t I say the same about the transmissions in my dodges? “Why buy a truck meant for hard work and then when I work it hard it’s gonna cost me downtime & thousands of dollars just to replace the transmission that should’ve lasted longer?”
If I have to replace just my hpfp once during ownership it’s not the end of my life. But I can say I’d be a lot more pissed if it messed up my whole fuel system.
Being in and around trucks for business, you know what does and doesn't have the best record and you steer clear to avoid downtime and extra expense.
Cargo Master
Joined: Mar 2021
Posts: 2,043
Likes: 1,333
But why buy something that has a history of premature failure from the factory? Ok so a Chrysler transmission in the Ram doesn't last as long as Ford or GM, don't buy the Ram with a Chrysler transmission and instead pick the Aisin option. Seems pretty simple. Ford uses a CP4 pump that has a significant probability of being defective and failing prematurely compared to the other pumps used by GM and Ram, don't buy a Ford. Seems pretty simple.
Being in and around trucks for business, you know what does and doesn't have the best record and you steer clear to avoid downtime and extra expense.
Being in and around trucks for business, you know what does and doesn't have the best record and you steer clear to avoid downtime and extra expense.
Our finances haven’t been affected one way or the other comparing costs of the power strokes, Cummins or duramax trucks. If one was giving us significantly more expense they’d be gone, jackass.
Hotshot
Joined: Oct 2006
Posts: 10,127
Likes: 7,930
From: Texas
I think their reason was the location where a cp3 wouldn’t fit
but as S&S has shown with their DCR pump you can fit a good pump there still.
but at a minimum dpk makes it a much different story
”hey my pump went back so I had to spend $2k on a new one to get put in…took a couple days”
VERSUS the OPs story
”hey my pump went bad I’m spending $12k and truck will be down couple weeks”
but as S&S has shown with their DCR pump you can fit a good pump there still.
but at a minimum dpk makes it a much different story
”hey my pump went back so I had to spend $2k on a new one to get put in…took a couple days”
VERSUS the OPs story
”hey my pump went bad I’m spending $12k and truck will be down couple weeks”
Is it possible the OP was oblivious to the issues with the CP4, therefore did not even know about the DPK? Possibly. There are plenty of folks out there that way.
If I still had a Ford 6.7 PSD you can bet you a$$ I would have one on it. I guess I am just pi$$rd at
because they won’t do anything about it.Could a more robust pump be designed to fit? I am sure it could be done……..DCR.
Fleet Mechanic
Joined: Nov 2019
Posts: 1,426
Likes: 487
From: North Carolina
Well, I'm an (up)proud member of the catastrophic CP4 pump failure club.
Being paranoid based on other user's experience didn't help nor did any additive. I changed my fuel filters more than required and added cetane boosted additives at almost every fill up. Nonetheless, the pump failed @ 129,325 on my 2017 SD and sent metal fragments through the entire fuel system.
The only indication I got was a CEL with a Reduced Engine Performance Message under acceleration followed by a complete engine shutdown. I had it towed back to the house and dropped the tank-side fuel filter only to find metal in the residual fuel. I had it towed to a Ford dealership for further diagnosis hoping it was something else, but it wasn't. $11,256 later and I got her back...and entered my information into the pending Class Action.
Not much more I could have done according to the service manager...
Being paranoid based on other user's experience didn't help nor did any additive. I changed my fuel filters more than required and added cetane boosted additives at almost every fill up. Nonetheless, the pump failed @ 129,325 on my 2017 SD and sent metal fragments through the entire fuel system.
The only indication I got was a CEL with a Reduced Engine Performance Message under acceleration followed by a complete engine shutdown. I had it towed back to the house and dropped the tank-side fuel filter only to find metal in the residual fuel. I had it towed to a Ford dealership for further diagnosis hoping it was something else, but it wasn't. $11,256 later and I got her back...and entered my information into the pending Class Action.
Not much more I could have done according to the service manager...
I know one guy that had that happen, he had the pump fail, and he didn’t know why. Insurance covered it. Maybe vandalism, somebody could have polluted the dispel tanks, and you got the fuel, etc. worth a try, explain what happened, show receipts and your filters, etc. worth a try it’s a yes or no.
no different then someone breaking in, or them covering a rock going through your window!
Cargo Master
Joined: Apr 2018
Posts: 2,364
Likes: 1,104
Well, with almost 4 million miles on the 6.7's, I found out today I lost my first CP4.
Last week, One of my 550s was hauling out to Ohio, Just filled up at pilot, had gone. Maybe 20 minutes and poof a truck just died. He coasted to the side of the road, he tried to restart it and it just spun, spun. My gut instantly told me CP4.
Had the truck and trailer towed to a job site. Offloaded cargo and generator, towed to Ford.
They claim it really crappy diesel fuel on it so they drain the tank and pulled the filter. They claim to install the new filter with fresh fuel and they tried to crank it after they clear the codes. The codes came right back.
I gave them permission to open up the injection system and they found metal waiting on estimate.
2017 with 240,000, mi. The odd thing is this one's never had gasoline like a few of my others. Got a love fleets
Last week, One of my 550s was hauling out to Ohio, Just filled up at pilot, had gone. Maybe 20 minutes and poof a truck just died. He coasted to the side of the road, he tried to restart it and it just spun, spun. My gut instantly told me CP4.
Had the truck and trailer towed to a job site. Offloaded cargo and generator, towed to Ford.
They claim it really crappy diesel fuel on it so they drain the tank and pulled the filter. They claim to install the new filter with fresh fuel and they tried to crank it after they clear the codes. The codes came right back.
I gave them permission to open up the injection system and they found metal waiting on estimate.
2017 with 240,000, mi. The odd thing is this one's never had gasoline like a few of my others. Got a love fleets
