Is CP4 still a problem?
Hotshot
Joined: Oct 2006
Posts: 10,146
Likes: 7,971
From: Texas
But, to each their own.
Lead Driver
Joined: Feb 2005
Posts: 7,923
Likes: 2,642
From: The Great State of Texas
Burn me once... naughty on you! Burn me twice... naughty on me!
FTE Legend
Joined: Mar 2017
Posts: 31,830
Likes: 9,154
From: Western NY
If there's.....
OR
You are going to have problems....
But SERIOUSLY....
And for you ladies that are here, the men come with their OWN SET OF PROBLEMS... because YOU have to put up with us -- I know, because I have an AWESOME wife who still loves me!
Cargo Master
Joined: Feb 2020
Posts: 2,277
Likes: 949
Since we're now poking... Lets poke a little at the Duramax.
Enjoy...
(4) (L5P REVIEW) 2020 Duramax YOU DO NOT WANT TO MISS THIS! NOT CLICKBAIT - YouTube
Enjoy...
(4) (L5P REVIEW) 2020 Duramax YOU DO NOT WANT TO MISS THIS! NOT CLICKBAIT - YouTube
Lead Driver
Joined: Feb 2005
Posts: 7,923
Likes: 2,642
From: The Great State of Texas
Chevy Silverado HD Duramax is towed into the local Chevy dealer because the customer reported the engine lost power and vehicle is still within drivetrain warranty. Tech identifies DEF in fuel system and the entire Denso HP4 system needs to be replaced. What course of action do you think GM will take?
Cargo Master
Joined: Feb 2020
Posts: 2,277
Likes: 949
Scenario:
Chevy Silverado HD Duramax is towed into the local Chevy dealer because the customer reported the engine lost power and vehicle is still within drivetrain warranty. Tech identifies DEF in fuel system and the entire Denso HP4 system needs to be replaced. What course of action do you think GM will take?
Chevy Silverado HD Duramax is towed into the local Chevy dealer because the customer reported the engine lost power and vehicle is still within drivetrain warranty. Tech identifies DEF in fuel system and the entire Denso HP4 system needs to be replaced. What course of action do you think GM will take?
Granted, that's one data point, but he did have his truck at multiple dealers trying to get it fixed.
Laughing Gas
Joined: Jul 2017
Posts: 764
Likes: 194
From: Elephant Butte NM
Disaster prevention kit is $450, if the pump actually fails it costs ~$1000 to replace. Whether or not it fails is TBD. $1450 to replace the pump (including the DPK cost) if you can do the work yourself, even cheaper. Not much different than owning a 7.3 that has an hpop failure.
Lead Driver
Joined: Feb 2022
Posts: 7,958
Likes: 4,039
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
4wd High
Joined: Jul 2020
Posts: 9
Likes: 1
I just got the bad news yesterday that my CP4 has sent metal bits through the whole fuel system. This is insane, I had no idea that I could have such a big repair bill for no reason. They say contaminated fuel, but it isn't water, so what is it? Now that diesel in about $2.00 more than gas, I wish I had bought a gas burner. Ford and the other members of big three should be ashamed for building something so fragile and then calling it "Super Duty".
Hotshot
Joined: Oct 2006
Posts: 10,146
Likes: 7,971
From: Texas
I just got the bad news yesterday that my CP4 has sent metal bits through the whole fuel system. This is insane, I had no idea that I could have such a big repair bill for no reason. They say contaminated fuel, but it isn't water, so what is it? Now that diesel in about $2.00 more than gas, I wish I had bought a gas burner. Ford and the other members of big three should be ashamed for building something so fragile and then calling it "Super Duty".
FTE Legend
Joined: Mar 2017
Posts: 31,830
Likes: 9,154
From: Western NY
I just got the bad news yesterday that my CP4 has sent metal bits through the whole fuel system. This is insane, I had no idea that I could have such a big repair bill for no reason. They say contaminated fuel, but it isn't water, so what is it? Now that diesel in about $2.00 more than gas, I wish I had bought a gas burner. Ford and the other members of big three should be ashamed for building something so fragile and then calling it "Super Duty".
Hotshot
Joined: Jul 2013
Posts: 14,256
Likes: 2,181
Ford could quietly change the screen on the fuel metering valve and that would help with contamination.
https://powerstrokecustoms.com/produ...oke-2011-2019/
This is the ultimate solution though.
https://youtu.be/F-vZEH1yEs
https://powerstrokecustoms.com/produ...oke-2011-2019/
This is the ultimate solution though.
https://youtu.be/F-vZEH1yEs
the best bet is a Second gen DPK and strict cp4 centric fuel discipline.
Hotshot
Joined: Jul 2013
Posts: 14,256
Likes: 2,181
I just got the bad news yesterday that my CP4 has sent metal bits through the whole fuel system. This is insane, I had no idea that I could have such a big repair bill for no reason. They say contaminated fuel, but it isn't water, so what is it? Now that diesel in about $2.00 more than gas, I wish I had bought a gas burner. Ford and the other members of big three should be ashamed for building something so fragile and then calling it "Super Duty".
We are sorry hear the bad news.
there is so many factors on things that blow up the CP4 that every precuation is worth taking. example...after getting fuel I noticed my egt was a few hundred degrees higher than normal. I quickly pulled over and did a fuel flash test to see if there was any gas in the deisel I bought....my test was ok.
a handful of us have been high advocates of folks getting gen2 DPK kits installed.
in your case...as mentioned...some insurance companies cover this under comprehensive policy. if the dealer ship is saying your fuel is contaminated....let them put that in writing and send the document to you insurance .
FTE Legend
Joined: Mar 2017
Posts: 31,830
Likes: 9,154
From: Western NY
