Was contemplating a 2025 6.7 Cummins... Nope!
Mar 24, 2025 · We also know from the Ford 6.7 vs GM LML situation, the CP4 survivability tended to be better with good filtration and lift pumps. Both of those are present, so just like on the Fords, it should …
Official 2025 Ram HD | Page 11 | Ram Heavy Duty Forum
Dec 9, 2024 · We will see. For all we know, this “CP8” might simply be a cam lobe change and a name change to escape the CP4 hate. I’ve heard many times before that Bosch isn’t the most pleasant to …
The Infamous New Bosch CP4.2 Fuel Pump - RAM FORUM
Aug 29, 2020 · Hello. I am very new to the RAM forum and have worries about the new Bosch CP4.2 Fuel Pump that is being used on the new High Output Cummins 6.7, in the Ram 3500 Duelly, which I …
High Pressure Fuel Pump CP4 To CP3 Downgrade issue Ram 2500 6.7 …
Feb 10, 2025 · My dealership preformed the recall to change out the High-pressure Fuel Pump CP4 and install the CP3 on my 2019 Ram 2500 6.7 Cummins with 130K on it. This...
Article on 2025 Ram HD new 6.7 Cummins changes
Dec 4, 2024 · CP4 eh? Looks like a CP4. But it’s not a CP4. CP8 is the new pump. No specs on it yet, and it isn’t even in Bosch’s system yet as far as I can tell. I’d love to get a look at the internals but I …
Y78 CP4 Pump Recall - Power Steering Fluid Leak
Oct 24, 2022 · I just had the CP4 pump replaced and noticed some oil drips in the garage. Looking around the engine bay, it appears to be power steering fluid and coming from the general area of the …
6.7 Cummins lifter issues 2019 3500 - ramforum.com
Nov 1, 2013 · Had the dreaded ticking noise on my 2019 3500 ram, 245,000 km, went to the dealer, I need you to clean up all the overdue recalls and look into this ticking. Dealer says, its your CP4, and …
Recalled CP4 Fuel Pump Went out before I could get the replacement
May 17, 2023 · I called yesterday for an update at the dealership and was told, yep- it was the CP4 fuel pump and that they had to wait to see what Ram wanted to do. I know they are responsible for the …
Cp4 - Post recall service Problems | Ram Heavy Duty Forum
Jul 26, 2024 · After getting the recall done at my local dealership (on my 2019 2500 mega cab bighorn) to swap the cp4 (about 1.5 years ago) I noticed a boost leak sound coming from my left ac vent / …
Here's What Happens When Your Flawed Bosch CP4.2 Fuel Pump …
Aug 29, 2020 · Here is a picture of a Bosch CP4.2 after catastrophic failure. After, without warning, the engine shuts down, the steering wheel locks, and you have no power brakes, look out!