Ram 2019 3500 diesel

Me Again wrote:

Flan wrote:
CP4 has been improved over the many years it has been out.

And is Bosch now paying Eldebrock to use patent for roller cam follows that do not turn sideways in the bore? Lack of good filtration ahead of the CP4.2 was one of Ford's issues with the pump along with warranty denials. At least GM just warrantied them until they could no long stand the failures and switched to the Demso pump.

It will be interesting to see how RAM does with the CP4.2 on the 2019+ models.

GM has not publicly said why they changed fuel pumps. It is purely speculation that they changed due to the failures, I wouldn't go touting that as gospel.

I CP3 swapped my 2015 LML, which at the time required a delete. Afterwards, S&S came out with a fuel pump that was modified and remapped and didn't require tuning, but it costs nearly $3K for the pump.

The Ram doesn't require a provision for an extra injector, so I expect that CP3 conversions will hit the market sooner than later (that require tuning), and then shortly after ones that are remapped.

Unlike Ford, which seems to have a cult following despite their historic 6.0/6.4 and 2011+ CP4 issues, it shouldn't be an issue at all to retrofit a CP3 to these. I don't think the used market for LMLs is hurting, either.

Do I condone having to spend money on a "perfectly good" new truck? Not really, but in reality, it probably isn't necessary anyway, and you should budget for modifying things you don't like when purchasing a new vehicle. Nothing is ever perfect.