CP4 Implosion!!! CRAP! CRAP! CRAP!
Hotshot
Joined: Dec 2005
Posts: 10,247
Likes: 7,667
From: Chino Valley, Arizona
I love reading these doomsday cp4 threads then one of the ranch trucks show up for something simple, 2 to 300,000 miles on them, oil changed once in a while, fuel filters changed when the engine looses power, dirty fuel cans in the dirty beds used daily to fuel them. Driven and treated like it is a company ranch truck, no cp4 failures yet but some are sure they are a ticking time bomb.
Cargo Master
Joined: Mar 2005
Posts: 2,368
Likes: 620
I love reading these doomsday cp4 threads then one of the ranch trucks show up for something simple, 2 to 300,000 miles on them, oil changed once in a while, fuel filters changed when the engine looses power, dirty fuel cans in the dirty beds used daily to fuel them. Driven and treated like it is a company ranch truck, no cp4 failures yet but some are sure they are a ticking time bomb.
Fleet Mechanic
Joined: Mar 2021
Posts: 1,454
Likes: 606
Air is the kiss of death.
Lead Driver
Joined: Nov 2005
Posts: 8,459
Likes: 4,955
I love reading these doomsday cp4 threads then one of the ranch trucks show up for something simple, 2 to 300,000 miles on them, oil changed once in a while, fuel filters changed when the engine looses power, dirty fuel cans in the dirty beds used daily to fuel them. Driven and treated like it is a company ranch truck, no cp4 failures yet but some are sure they are a ticking time bomb.
Sort of like my last truck, RAM with a 6.7 Cummins, only engine issue ever was a broken valve spring, how often does that happen?
And, talk about warranty issues, had an extended warranty, and every time the tech went to try something new for the diagnosis or repair, they had to get a warranty inspector out to physically look at it and approve it before he went any further. Truck was in the shop for 28 days for a broken valve spring!!! Half that time was waiting for the inspector to come out and look at it each time.
Thread Starter
|
Laughing Gas
Joined: Sep 2010
Posts: 904
Likes: 112
From: Austin, Texas
Read the report on the very first post in this thread. The pump can fail without rust or water. There was no rust or water in my fuel system. You either have good luck or bad luck with the CP4. There are other reports that talk about how air can get trapped in the pump and that causes the pump to not be properly lubricated - then it will fail. It is inherently a bad design.
Thread Starter
|
Laughing Gas
Joined: Sep 2010
Posts: 904
Likes: 112
From: Austin, Texas
Yup! There is nothing you can do about it because you don't know and you can't guard against it. I never ran my truck dry. Always had multiple gallons of fuel in the tank over the years of use. Again - bad design of the CP4. There were no "air" issues with the CP3 and with the 3rd party CP4 replacement pump.
3rd Gear
Joined: Aug 2023
Posts: 3
Likes: 2
Be careful with the Ram diesel pickups. There design problem #1 I hate is if you ever need a crank shaft positioning sensor is located be hind the flywheel. great place for this to be, now you have to drop the transmission to replace a $20.00 part. stupid engineers.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Laughing Gas
Joined: Sep 2017
Posts: 1,134
Likes: 263
From: Southwestern Pa.
Mountain Pass
Joined: Feb 2023
Posts: 122
Likes: 34
From: AL
Uhggg! I have been struggling with a series of issues with my truck. Two weeks ago I took it back to my dealership for "low power' issue. I.E. truck just didn't move like it used to and had trouble under load with my camper. Well they got back to me and the Bosch CP4 High Pressure Fuel Pump has imploded and now I have metal shards throughout my high pressure fuel system and in my fuel tank.
Before I go on my rant about the Bosch CP4, I will state a few facts:
BEGIN RANT
Ford, GM, and Dodge/RAM have all used Bosch high pressure fuel pumps for years. In 2010 Bosch released the CP4 version of the pump. Ford specifically designed the 2011 6.7 Powerstroke around the CP4. GM immediately used it in their 2011 Duramax (LML?). Cummings (Ram/Dodge) used the CP3 until 2019 when the 6.7L Cummings was released and they switched to the CP4. Well each vendor has had failures - significant quantities of failures. GM stopped using the CP4 in 2016. They don't use Bosch pumps at all anymore on Duramax. Cummings only used the CP4 for 2019 and 2020, then immediately went back to the CP3 while issuing a recall to replace existing CP4's in the field with CP3s. What has Ford done? Nothing. They continue to ship new trucks with this POS fuel pump.
If you do your research, you can find all kinds of information and various facts / figures. But based what I found in Europe Bosch sees about 1% failure. In the USA, Bosch sees about 7% failure. (I suspect this data is educated guesses as I doubt Bosch is going to release that data...). This fuel pump is a disaster in the US market. I am just astounded that Ford continues to use this pump.
Here is a very good article on the CP4 from an independent source:
https://www.dieselhub.com/tech/bosch...p-failure.html
So my story is more interesting... This is my second experience with the CP4. I had a 2011 F-250 with the 6.7 Powerstroke. In 2014, my CP4 imploded as well. My 2011 truck only had about 52,000 miles on it. I was actually on vacation up on Colorado where it died and left me stranded. As with my 2017, I properly operated and maintained that truck (always used PM-22-A, never ran it dry, all service work completed at the specified intervals). So now Ford has let me down twice for the exact same problem. I thought the first CP4 failure was a fluke. Now that it has happened twice, I am just pissed.
Back in October of last year, I renewed the extended warranty on my 2017. I am glad I did so but apparently Ford is slow to approve the warranty action for this fuel system replacement. The dealer told me that there has been no evidence of rust anywhere in my high pressure fuel system. My fuel is clean - no evidence of gas or DEF in the tank. (which make sense - I take care of my equipment). So now I am stuck in limbo waiting on Ford to decide if they are going to SCREW one of their loyal customers. Yes, I am Ford guy. I wear Ford hats and Ford shirts. I have always been a blue oval fanboy! I have owned countless Fords since I bought my first one at age 16. So in nearly 40 years of driving, I have owned many of them. At this point, I am disgusted with Ford for two reasons:
I am seriously considering selling my F-350 (which I have loved) once it is repaired and stepping away from Ford. Man it hurts to say that.... I hate GM products and I have never been fond of Dodge/Ram but I am seriously considering a Ram truck now. No wonder Ford stock stays in the crapper!
FORD GET YOUR CRAP TOGETHER!!!
END RANT
Before I go on my rant about the Bosch CP4, I will state a few facts:
- I take care of my equipment. All service work is handled on time. I don't abuse my truck at all.
- I add the Ford PM-22A treatment to most tanks of fuel (probably 80% of the time) since I bought this truck new back in 2016.
- I have NEVER run out of fuel in this truck. The fuel system has NEVER been dry.
BEGIN RANT
Ford, GM, and Dodge/RAM have all used Bosch high pressure fuel pumps for years. In 2010 Bosch released the CP4 version of the pump. Ford specifically designed the 2011 6.7 Powerstroke around the CP4. GM immediately used it in their 2011 Duramax (LML?). Cummings (Ram/Dodge) used the CP3 until 2019 when the 6.7L Cummings was released and they switched to the CP4. Well each vendor has had failures - significant quantities of failures. GM stopped using the CP4 in 2016. They don't use Bosch pumps at all anymore on Duramax. Cummings only used the CP4 for 2019 and 2020, then immediately went back to the CP3 while issuing a recall to replace existing CP4's in the field with CP3s. What has Ford done? Nothing. They continue to ship new trucks with this POS fuel pump.
If you do your research, you can find all kinds of information and various facts / figures. But based what I found in Europe Bosch sees about 1% failure. In the USA, Bosch sees about 7% failure. (I suspect this data is educated guesses as I doubt Bosch is going to release that data...). This fuel pump is a disaster in the US market. I am just astounded that Ford continues to use this pump.
Here is a very good article on the CP4 from an independent source:
https://www.dieselhub.com/tech/bosch...p-failure.html
So my story is more interesting... This is my second experience with the CP4. I had a 2011 F-250 with the 6.7 Powerstroke. In 2014, my CP4 imploded as well. My 2011 truck only had about 52,000 miles on it. I was actually on vacation up on Colorado where it died and left me stranded. As with my 2017, I properly operated and maintained that truck (always used PM-22-A, never ran it dry, all service work completed at the specified intervals). So now Ford has let me down twice for the exact same problem. I thought the first CP4 failure was a fluke. Now that it has happened twice, I am just pissed.
Back in October of last year, I renewed the extended warranty on my 2017. I am glad I did so but apparently Ford is slow to approve the warranty action for this fuel system replacement. The dealer told me that there has been no evidence of rust anywhere in my high pressure fuel system. My fuel is clean - no evidence of gas or DEF in the tank. (which make sense - I take care of my equipment). So now I am stuck in limbo waiting on Ford to decide if they are going to SCREW one of their loyal customers. Yes, I am Ford guy. I wear Ford hats and Ford shirts. I have always been a blue oval fanboy! I have owned countless Fords since I bought my first one at age 16. So in nearly 40 years of driving, I have owned many of them. At this point, I am disgusted with Ford for two reasons:
- Why keep making a product with a highly suspect component!!!
- Why drag out the warranty approval and stall and threaten not to do it!!!
I am seriously considering selling my F-350 (which I have loved) once it is repaired and stepping away from Ford. Man it hurts to say that.... I hate GM products and I have never been fond of Dodge/Ram but I am seriously considering a Ram truck now. No wonder Ford stock stays in the crapper!
FORD GET YOUR CRAP TOGETHER!!!
END RANT
Lead Driver
Joined: Nov 2005
Posts: 8,459
Likes: 4,955
Plus, your comment does not do anything to further the OP's repair of his truck.
Lead Driver
Joined: Nov 2005
Posts: 8,459
Likes: 4,955
Thread Starter
|
Laughing Gas
Joined: Sep 2010
Posts: 904
Likes: 112
From: Austin, Texas
Once the dealer has parts in hand and can get the truck back in the bay, does anyone have any idea as to how long the process takes?