Cp4 pump replacement only
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2nd Gear
Joined: Dec 2023
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Cp4 pump replacement only
Hey guys so I have a 2011 f350 233xxx miles. Sadly I didn’t know what I was looking at when I purchased recently and was lied to about the true condition of the motor. Anyway. It needs a fuel system. I’ve researched to the ends of the internet and am wondering if I could purchase a remanufactured cp4 pump just to get the thing going again. I know you are supposed to do the lines and rails and injectors and all that but I don’t have $10k to put in it right now. So can someone please tell me their thoughts on this.
I drove it home 120 miles after purchase and then it went to crap. It will start with a sprits of either (don’t shoot me I know it’s not recommended on diesels) but it will run. The only issue that I’m having now is that once it tries to shift into second gear it will blow the return fuel line off one of the Ts. You can pull over and push it back on and get going again but have to keep it in first gear. I just purchased a new return line but haven’t put it on yet.
I drove it home 120 miles after purchase and then it went to crap. It will start with a sprits of either (don’t shoot me I know it’s not recommended on diesels) but it will run. The only issue that I’m having now is that once it tries to shift into second gear it will blow the return fuel line off one of the Ts. You can pull over and push it back on and get going again but have to keep it in first gear. I just purchased a new return line but haven’t put it on yet.
Laughing Gas
Joined: Jul 2020
Posts: 971
Likes: 454
No, I did and still spent the 10k. Mine hadn’t even trashed itself, it still run fine just didn’t have enough flow during a regen and pulling trailer it would drop pressure and set a code then derate.
We changed the pump and I run it 3 months as injectors seemed good but they weren’t and I got to buy injectors and fuel rails anyway.
In sellers defense he may have been totally inoccent , those things generally do not give any warning so I would not be to hard on him unless you have ample evidence. Good luck.
We changed the pump and I run it 3 months as injectors seemed good but they weren’t and I got to buy injectors and fuel rails anyway.
In sellers defense he may have been totally inoccent , those things generally do not give any warning so I would not be to hard on him unless you have ample evidence. Good luck.
FTE Legend
Joined: Mar 2017
Posts: 31,773
Likes: 9,113
From: Western NY
Hey guys so I have a 2011 f350 233xxx miles. Sadly I didn’t know what I was looking at when I purchased recently and was lied to about the true condition of the motor. Anyway. It needs a fuel system. I’ve researched to the ends of the internet and am wondering if I could purchase a remanufactured cp4 pump just to get the thing going again. I know you are supposed to do the lines and rails and injectors and all that but I don’t have $10k to put in it right now. So can someone please tell me their thoughts on this.
I drove it home 120 miles after purchase and then it went to crap. It will start with a sprits of either (don’t shoot me I know it’s not recommended on diesels) but it will run. The only issue that I’m having now is that once it tries to shift into second gear it will blow the return fuel line off one of the Ts. You can pull over and push it back on and get going again but have to keep it in first gear. I just purchased a new return line but haven’t put it on yet.
I drove it home 120 miles after purchase and then it went to crap. It will start with a sprits of either (don’t shoot me I know it’s not recommended on diesels) but it will run. The only issue that I’m having now is that once it tries to shift into second gear it will blow the return fuel line off one of the Ts. You can pull over and push it back on and get going again but have to keep it in first gear. I just purchased a new return line but haven’t put it on yet.
Laughing Gas
Joined: Jul 2020
Posts: 971
Likes: 454
FTE Legend
Joined: Mar 2017
Posts: 31,773
Likes: 9,113
From: Western NY
That part of the story is still being written, we did not but it’s still not running right. I actually limped it home last night and am driving a …………Ram😲😲…….. right now. I think it may get replaced again. It never idled smooth, the fuel rail pressure is always hunting. Sometimes drops and truck shuts off.
Lead Driver
Joined: Jan 2002
Posts: 8,624
Likes: 4,709
From: Itinerant
That part of the story is still being written, we did not but it’s still not running right. I actually limped it home last night and am driving a …………Ram😲😲…….. right now. I think it may get replaced again. It never idled smooth, the fuel rail pressure is always hunting. Sometimes drops and truck shuts off.
It seems with these diesel beast there is no half fix if the cp4 goes without prevention kit on it.
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Lead Driver
Joined: Jan 2002
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From: Itinerant
OP in this video of adding a prevention kit go to minute 25 for a couple of minutes when they show the screen. If metal is present.....
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FTE Legend
Joined: Mar 2017
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From: Western NY
Lead Driver
Joined: Jan 2002
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From: Itinerant
FTE Legend
Joined: Mar 2017
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From: Western NY
Here's the videos where S&S intentionally damage the CP4 and continue driving it to see how well their kit protects the system and how far the truck will go on a damaged CP4. They did it to 2021, but I'll post the series of videos that deals with our gen trucks, the 2011 to 2016.
FTE Legend
Joined: Mar 2017
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From: Western NY
You could always go this route and be done. Maybe even sleep well with no nightmares.
https://youtu.be/KoRZTgGOdBw?si=QW5mwdQjFrbJ_aGH
https://youtu.be/KoRZTgGOdBw?si=QW5mwdQjFrbJ_aGH
Lead Driver
Joined: Jan 2002
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From: Itinerant
When I watched the SEMA video of the DCR they mentioned that the prevention kit wasn't needed but if installed wouldn't hurt anything. The DCR won't eat the whole fuel system if an issue arises. 
Really has me thinking about it but I don't want to do it myself. Doing it in the open air of the desert at one of my boondocking location isn't a good senerio if something breaks. Civilization can be 30+ miles away.
2016 truck only has 63k miles and I keep them forever and being in the west not seeing snow, not being near the coasts getting salty air the under carriage is like new conditions. Like Overkill2 I'm originally from western NY and don't not miss my trucks rusting away between year 4-8.
Edit...did you mean this video @Overkill2 ?
Really has me thinking about it but I don't want to do it myself. Doing it in the open air of the desert at one of my boondocking location isn't a good senerio if something breaks. Civilization can be 30+ miles away.
2016 truck only has 63k miles and I keep them forever and being in the west not seeing snow, not being near the coasts getting salty air the under carriage is like new conditions. Like Overkill2 I'm originally from western NY and don't not miss my trucks rusting away between year 4-8.
Edit...did you mean this video @Overkill2 ?
FTE Legend
Joined: Mar 2017
Posts: 31,773
Likes: 9,113
From: Western NY
When I watched the SEMA video of the DCR they mentioned that the prevention kit wasn't needed but if installed wouldn't hurt anything. The DCR won't eat the whole fuel system if an issue arises.
Really has me thinking about it but I don't want to do it myself. Doing it in the open air of the desert at one of my boondocking location isn't a good senerio if something breaks. Civilization can be 30+ miles away.
2016 truck only has 63k miles and I keep them forever and being in the west not seeing snow, not being near the coasts getting salty air the under carriage is like new conditions. Like Overkill2 I'm originally from western NY and don't not miss my trucks rusting away between year 4-8.
Really has me thinking about it but I don't want to do it myself. Doing it in the open air of the desert at one of my boondocking location isn't a good senerio if something breaks. Civilization can be 30+ miles away.
2016 truck only has 63k miles and I keep them forever and being in the west not seeing snow, not being near the coasts getting salty air the under carriage is like new conditions. Like Overkill2 I'm originally from western NY and don't not miss my trucks rusting away between year 4-8.
Too bad you weren't closer Rat, I'd give a fellow WNYer a hand... you talking the DPK or the DCR, to install?
My truck is 7 years old and is not a rust bucket. I get it oiled every year. I'm going to do a thread at one point with the pics I've taken on how I've dealt with the rust, what I've done and what I still have to or rather want to (MonstaLiner on the body along the lines for example)...