Does anyone know if they used the same flawed pump in the 2020's? Gosh, will all the stuff out there on the web about this pump
and why it fails I amazes me that they would not eventually move onto a different design or unit all together... or even something like the
bypass kits out there installed from the factory so that if something did fail it wouldn't cost a whole fuel system when it did. Nothing wrong
with redundancy right?

I would think a "better" design would sell just as well if not better and have happy customers to boot... I guess as the saying goes..."we gonna
buy em anyways so why would they change anything that costs them more money"?

 

I use Motorcraft PM-22a in the summer, and PM-23a in the winter.

 

Not my words but an easy explanation

“Emulsifiers break the water into microscopic droplets and prevent the droplets from joining together. The water is suspended in, and carried along with, the fuel. The volume of droplets is not great enough to block lines or damage injectors. De-emulsifiers work the opposite way. They modify the diesel so it cannot hold water. The water, being heavier than the fuel, drops out and settles at the bottom of the tank. It cannot travel through the system to do damage, unless its level builds to where it is up to the level of the fuel pick-up tube.”

So, the current trend is to run a demulsifier type additive as some argue that the emulsified additive allow water to pass through the pump and create rust which eventually causes the failure of the pump.

 

Yet Ford sells Diesel additives.....

 

To the same people who buy CP pumps...

 

Would be interesting to know HOW MANY pumps actually fail of all the ones put into service every year? Anyone have an estimate?

 

It would be an interesting exercise to find out. There is one with every 6.7L at least, and from what I judge, they sell a LOT. I may probe at my dealer when I get my first oil change done, they sell a lot of SD's including commercial and fleet.

 

Manufacturers don't disclose warranty claims. Ford, Chrysler, GM, Jeep, Audi, and VW are the primary users. There may be others I'm leaving off the list, but those are the major manufacturers using the CP4 pump. I don't know how many pumps are out there, but if you wanted to do some very deep digging, you could probably come up with a number that is within 100,000 or so.

Nobody on this or any other forum knows those numbers. Even if you knew how many CP4 pumps have failed, you are then left with understanding the cause of the failures. There are stories out there of people who put DEF in the fuel tank, so there have to be some owner-caused failures. Who knows how many? The other thing that corrupts understanding the significance of the issue is that forums do a very poor job of giving you an understanding of anything. I reapeat; ANYTHING. Not everyone who has a pump failure is a member here and posts their anecdote of the failure. Not every person who has a diesel using this pump is a member here and posts that everything is just fine regardless of the mileage.

There are also a lot of other corruptions of knowledge. Even here, there is a difference of opinion on whether you need any additives. There is also a difference of opinion on whether you need an emulsifier or a demulsifier. I guess these issues are better solved on the field of battle. Or, more gentlemanly; in a duel.

So, nobody has any data. Everyone seems to have an opinion. Well, that's not really true that everyone has an opinion. There are hundreds of thousands...maybe millions, of diesel owners who are oblivious to these forum discussions and just drive their truck or car. Yep. Fat, dumb, and happy. No worries. Never knowing that tragedy is stalking them and if only they would join an automotive forum and read up on everything that can go wrong.

 

If you use it cool is it a waist of money who really knows. I for one dont care how much it cost its part of preventative maintenance to me. If you cant afford it then you shouldn’t be driving a diesel period. Diesels cost more in every way we all know that. If you want to take a chance of ruining your fuel system or engine thats your choice. I may add this crap in mine for 50,000 or 300,000 who knows but nobody on here I can promise you has the knowledge to say if its a waste of money or not.

 

Project Farm did a great video on diesel additives for those who have not seen it.

 

That's generally what buys me comfort, there are likely over a million 6.7L powerstrokes out there in all sorts of vehicles and use cases. I'm sure 95% of those are not being run with any additives on whatever diesel fuel comes from whatever pump in whatever state. With most of those users carrying on blissfully unaware and without major failures.

(estimate based on 6.7L Power Stroke Diesel Specs & Info "over 500,000 in the fiirst 3 years")

 

My neighbor filled his GMC 2500 up with gas, yes GASOLINE, (unsure of exact amount) and drove it for about an hour before figuring out what he did. Dealership had to clean the system out but apparently all the original components are still working. For how long.....who knows???

 

Ignorance is bliss. All others use additive

Since Ford is unlikely to warranty a fuel system failure, does it make sense to install a disaster prevention kit? That only voids the fuel system warranty, right?

 

I am really contemplating this as well, as simple of a device this looks to be, one would think someone like Ford would add something like this to help protect its customers. Someone the size of Ford could probably add this feature for less than 20 bucks. Sure the exact numbers of failures are not known, but for a relatively simplistic "fuel pump failure"(regardless of what causes the pump to grenade) to cost 10k or more in repairs is crazy.

 

No, I have had diesel farm tractors for 35+ years with separator and never saw any water. Been running OL in Ford 6.7's since '11 and haven't seen any either