Forum Discussion
184 Replies
- Me_AgainExplorer III
IdaD wrote:
I think it's still a steaming pile of ****, FWIW. Even if they've gotten somewhat more reliable in newer iterations, they still grenade the fuel system when they fail which makes it a much more significant fix compared to a failed CP3 unit. It's just a bad design, end of story.
There have been CP3 failures that grenaded the whole fuel system. - ksssExplorer
Huntindog wrote:
time2roll wrote:
I have considered it. Still might do it.Huntindog wrote:
Would that be reason to replace the pump before it fails?
All true BUT....... Warranties expire.
I have never seen a pump yet that did not fail at some point. When the CP4 fails, it sends debri thru the entire fuel system. Everything from the injectors to the tank is affected. Over 10K to fix it. The pump itself is less than 1K.
It is about new truck time though..
Check out the L5P, the water is warm! - HuntindogExplorer
time2roll wrote:
I have considered it. Still might do it.Huntindog wrote:
Would that be reason to replace the pump before it fails?
All true BUT....... Warranties expire.
I have never seen a pump yet that did not fail at some point. When the CP4 fails, it sends debri thru the entire fuel system. Everything from the injectors to the tank is affected. Over 10K to fix it. The pump itself is less than 1K.
It is about new truck time though.. Huntindog wrote:
Would that be reason to replace the pump before it fails?
All true BUT....... Warranties expire.
I have never seen a pump yet that did not fail at some point. When the CP4 fails, it sends debri thru the entire fuel system. Everything from the injectors to the tank is affected. Over 10K to fix it. The pump itself is less than 1K.- Bigfoot_affairNomad III just got rid of two trucks because they had the CP4. It is always in the back of your mind when and if she's going to blow... Not a great feeling.
How are you so sure that Ram is going to cover the pump if you have problems? - ksssExplorerThat same argument was made with IH and Ford. While IH didn't have the extent of issues with the their version of the 6.0 like Ford did, it does illustrate the fact that if your hanging your hat on that connection, it didn't provide a lot of help to the Ford 6.0 customers. I am not saying that the 6.7 redone is a Ford 6.0 only that relying on that connection has burned customers in the past.
- Cummins12V98Explorer IIILet's not forget the engine is made by CUMMINS and they have other "Medium Duty" Customers to keep happy with the EXACT same configuration that comes in the RAM's. Oh I forgot the others are painted RED.
- ksssExplorerBeing optimistic can be expensive. It all may turn out fine, but starting with a pump with a poor history, by OEM that hasn't used it before, with what appears to be new filtering could cause one to pause. I too would wait for at least a year to see what happens. Not sure what makes Ram incapable of being tight on warranty claims or release a product not quite ready for prime time, they all have been guilty of it at some point.
- HuntindogExplorer
Bionic Man wrote:
All true BUT....... Warranties expire.
With the CP4 “issue”, isn’t it as much about how the manufacturer (ie RAM) stands behind the warranty on the engine as to the weakness of the pump?
From what I have read, it is (or was) much more of an issue for one manufacturer than the other.
I have never seen a pump yet that did not fail at some point. When the CP4 fails, it sends debri thru the entire fuel system. Everything from the injectors to the tank is affected. Over 10K to fix it. The pump itself is less than 1K. - Cummins12V98Explorer III
IdaD wrote:
Cummins12V98 wrote:
I would not let it bother me since they are not going to have this pump unless the issues were resolved. Yes it has been very quiet for a while with Ford pump stories.
Yet, you last February:Now as mentioned ya may want to look at trucks from the last 5 model years. IMHO the RAM trucks have proven to be very dependable with their electronics and drivetrains. Also they have the gold standard Bosch CP3 injection pump. GM and Ford used the CP4, GM gave up on that with so many warranty claims they now use the Denso pump.
Seems odd that the CP4 is suddenly fine in your opinion because Ram is using it now. I think it's still a steaming pile of ****, FWIW. Even if they've gotten somewhat more reliable in newer iterations, they still grenade the fuel system when they fail which makes it a much more significant fix compared to a failed CP3 unit. It's just a bad design, end of story.
I never said it was fine. I said it's been quiet for a while on the Ford's.
I also said you have 5 years and 100k to decide if they have a good product as I know RAM will stand behind it.
I also said I would consider a 2020 RAM, NOT a 2019. Many reasons for that.
Do I wish they could have stayed with the CP3? Sure but it was not possible. Do I think the pump will prove to be dependable? YES as it has been around for a few years and the issues have disappeared.
Remember the 07.5 6.7 issues? Sure as HE!! did not make all 6.7's bad as they fixed the issues.
About Travel Trailer Group
44,045 PostsLatest Activity: Aug 01, 2025