I'm the happy honor of a 2015 6.7L Powerstroke but I also have a 2022 6.7L on order. So when the truck actually arrives, probably sometime around Christmas, I wanted to see if either of the chronic issues from 2015 are still being experienced with the latest version of these trucks - 2020s+...

1. Def heater failure? This was an issue in the years around 2015s and I have it happen around 60k. Wondering if that's the same setup and folks are seeing heater failure these days on their 2020+ trucks?

2. CP4 Pump - I used Archoil fuel treatment to help lube the 2015 CP4 injector pump to help with it's longevity. Not sure if it helped but I haven't had any issues in 121k+ miles. Is the current 6.7L using the CP4 in the same way the 2015 does?

I already placed my order so this won't change my decision to buy but I would appreciate a heads up on these or any other chronic issues so I know what to expect. I have seen many common issues by searching through the forum. Appreciate the thoughts.

 

ill throw my 2 cents in here. I haven’t read of many heater failures in the 2017+ trucks, my 2019 is fine.

the cp4 failure seems to be way way overblown imo, it’s a mass produced part some will fail, but I think it’s still way overblown.

 

If you spend some time on the forum, you can get an impression of lingering problems in this generation. Most issues are common across manufacturers. They're technology-based issues like electrical gremlins with connector or wire chaff issues or electronics like failing modules like the APIM that runs the center display screen. Nothing pervasive. Again, read pages and pages to see what issues are occurring. And understand you are not reading post topics announcing everything's fine. Those don't exist. That only because there's no point telling everyone the river isn't rising and you aren't flooding.

The CP4 pump thing is a neurotic's boogie man. There are literally millions of CP4 pumps in use. You can read this forum and the 6.7 diesel section and you will see the announcements of failures are really very rare. The posts on the pump surround products. Something to sell to you to chase away the boogie man. I know this freaks out the additive guys, but most people don't use additives and they are doing as good as the people who do.

So, look over the topics for yourself. You'll see there's not a lot of common stuff out there.

 

that's fair, and my local diesel shop said they see more failures on other diesel engines that don't have lift pumps and have more CP4 failures that the Fords...

 

I had a 15 that I drove for 100,000 miles. I had neither of those problems.
I had a 17 that I drove for 87,000 miles and now a Friend has and is still driving, saw neither of those problems
I am currently driving a 20 and have not had any problems

I suspect we hear about these failures because they are expensive to fix, But they are not the general rule

 

neither has been resolved by ford. CP4 pumps still fail and DEF heaters still fail...also DEF injecotrs fail and will leave you on the side of the road.

On the CP4 there is a long laundry on failure contributing factors and some of those factors are aggravated by detection systems not work or non existent. ford will tell you water is the cuase of CP4 failures but ford has a water seperator and its not rigged up to shut the motor down if water seperator is full. the seperator does not work.

there is no fuel presure indicaor to the operator and the engine is allowed to dry start......senerio is clogged filters or failed low pressure fuel lift pumps which dont put the engine in no-start mode....the engine will crank causing the high presure fuel pump to grind itself away.

if you survive the first 50 to 75 K miles the bearing cup that holds the roller bearing will rotate cuasing grinding in the CP4 and complete fuel system failure....ford will nit pick to find ways of blaming the operator.

diesel trucks is a crap shoot. if your needs can be met with the new 7.3 gas engine...that would be the best route.

 

I worried about pump failures after reading the about the nightmares on my 2011.
First 100K miles I religiously ran additives. Then the next almost 100K, no additives.
No problems, no worries.
I logged my miles/gallons in a spreadsheet, also tracking towing mileage.
Additives did not increase my mileage worth mentioning.

 

wow, good to know!

 

Biggest problem with the CP4............FOMoCo has not yet seen the need to dump it in favor of a better pump.
GM switched to a Denso pump
Mopar went back to a variant of the CP3 after only two years with the CP4
If FoMoCo switched, then maybe Bosch would wake up and design a better mouse trap.
But, as shown, most have no issues......just the unlucky few. And a lot of time “luck” is at the control of the guy fueling/adding DEF.......even though they will never admit to an error on their part.
Of course, the last statement is just my opinion, no scientific data.

 

nope, I won't pull anything above 10k without a diesel. Personal decision but my experience with how the 6.7 handles a 15k trailer up and down mountains is impressive. Again, the questions are related to what to expect and not a buying decision.

 

We have a 2020 Ford F350 with 49,xxx miles and we had a complete CP4 pump failure in East Central Illinois, lost power while traveling on the highway. Vehicle had to be towed to Lafayette, IN to be repaired. There was no contamination of Def in the fuel as it is being covered under warranty and that is a standard item they check for. I will not be buying any more Ford fleet vehicles until this pump issue is resolved. At least Dodge and GM had the sense to change to a different high pressure fuel pump.

 

CP4 failure is uncommon but costly. Ford generally blames bad fuel and the operator has little recourse. The repair is roughly $12k. This is what I've read on message boards. I don't personally know a Ford owner that has experienced this. I do know one Ram owner and the outcome was similar (his was out of warranty I believe). I've also read on forums about 6.2s and 7.3s with internal engine problems. Do what you want with this information.