Had my CP4 HPFP swapped out for DCR and....

[Donald]

Truck runs the same. As it should. I was hoping I would sleep better knowing if my HPFP died I would not be out $10K to $15K. But sleep is the same.

Soon to take apart CP4 and have a look.

Is there any market for a used CP4 pump that shows no damage?

 

[johnmyster]

Does industrial or exergy need a core?

I carry spare parts in my truck/camper but in the case of a CP4 failure, just having the pump doesn’t get one very far.

 

[Donald]

Does industrial or exergy need a core?

I carry spare parts in my truck/camper but in the case of a CP4 failure, just having the pump doesn’t get one very far.

The CP4 pump will not fit on my truck anymore with all the fuel lines now setup for the DCR pump. You would need all the original fuel lines also.. If the DCR pump failed I would get another DCR pump. But the DCR is a different design and even if it failed it will not send bits of metal all throughout the fuel system.

But I still add a high quality fuel additive and only buy Exxon/Mobil branded diesel.

 

[johnmyster]

The CP4 pump will not fit on my truck anymore with all the fuel lines now setup for the DCR pump. You would need all the original fuel lines also.. If the DCR pump failed I would get another DCR pump. But the DCR is a different design and even if it failed it will not send bits of metal all throughout the fuel system.

But I still add a high quality fuel additive and only buy Exxon/Mobil branded diesel.

I kinda meant, sell as a spare to someone else. But I guess I didn’t specify. You’ve solved your problem.

 

[mattd]

Keep it as a spare Donald as an emergency. Could also sell it to an injection pump shop as a core. When you Pull the heads off and check the rollers and cam post pictures!

 

[GON]

@Donald, thanks for posting about your conversion from CP4 to DCR.

Lots of questions for you. What year, model, and mileage on your Ford? How much was parts and labor? Is your Ford in or out of warranty?

I struggle to get a grasp if S&S Diesel, the exclusive distributor of the DCR, has solved a real problem, or are master marketers. Ford sells massive amounts of 6.7 diesels, yet Ford stays with the CP4. The question always becomes is the CP4 failure from lack of filter maintenance and/ or bad diesel fuel, or is the CP4 just a bad design. I suspect Ford would have replaced the CP4 with another style fuel pump if the pump itself is the reason for the failure (instead of bad diesel and lack of filter maintenance).

I decided to keep the CP4 in my 2019 F350 with 60k miles. The primary reason I am keeping the CP4 is the truck is under a FOMOCO extended warranty- I suspect a DCR will be reason to deny a powertrain warranty claim. I am selective where I buy diesel fuel, use supplemental lubrication product with the fuel, and change out fuel filters every 5k miles. With the steps I am taking I am not losing sleep over the CP4 design concerns.

 

[Donald]

@Donald, thanks for posting about your conversion from CP4 to DCR.

Lots of questions for you. What year, model, and mileage on your Ford? How much was parts and labor? Is your Ford in or out of warranty?

I struggle to get a grasp if S&S Diesel, the exclusive distributor of the DCR, has solved a real problem, or are master marketers. Ford sells massive amounts of 6.7 diesels, yet Ford stays with the CP4. The question always becomes is the CP4 failure from lack of filter maintenance and/ or bad diesel fuel, or is the CP4 just a bad design. I suspect Ford would have replaced the CP4 with another style fuel pump if the pump itself is the reason for the failure (instead of bad diesel and lack of filter maintenance).

I decided to keep the CP4 in my 2019 F350 with 60k miles. The primary reason I am keeping the CP4 is the truck is under a FOMOCO extended warranty- I suspect a DCR will be reason to deny a powertrain warranty claim. I am selective where I buy diesel fuel, use supplemental lubrication product with the fuel, and change out fuel filters every 5k miles. With the steps I am taking I am not losing sleep over the CP4 design concerns.

It's 2015 with 158K miles. Parts were $2000 and labor about $1200.

The CP4 will wear out at some point and may damage the rest of the system with metal particles.

It's absurd that if the CP4 goes bad it takes out the rest of the fuel system.

Maybe Ford figures the CP4 will last throughout the warranty. If it swapped to a different pump then people might push for Ford to replace them in all years under a recall. Look at the recall for the CP4 on 2020 2924. They will reprogram for better cooling. I don't think they are replacing the CP4.

I will take pictures of the CP4 when I take it apart.