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Updates on cp4

2615 Views 60 Replies 20 Participants Last post by  RamCares
If I remember correctly from the recall mail, ram was supposed to be getting things started for cp4 pump recall repairs in June. Its may and it is right around the corner. So has anyone heard any news coming from your dealer about this?
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My dealership was more than willing to replace the entire fuel system on my truck when it went in for the pump failure in February. I got it back late April only for the “new” CP4.1 recalled pump to fail after 1 hour and 7 miles. So it is again sitting for a new pump and now it will actually get a new fuel system too supposedly.
You didn't get the new redesigned pump. You got the original CP4.2 pump.
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I'd rather a proper fixed CP4.2 that Bosch owned up to, than something jerry-rigged... knowing that Bosch's butt is on the line, you better believe they'll want to make a quality product for this market that will be on the same reliability scale as a CP3.

The CP4.2 is also used in a lot of non-automobile engines, and from what I've gathered from more daunting research, HPFP CP4 bombs are happening in heavy equipment too, which the owners are now cussing a storm, trying to avoid any engine that has a CP4.

Bottom line, Bosch is fixing it, which is a great thing!
A CP4.2 is already in these trucks. So a CP4.2 replacement won't be a "fix". Anything fixed is going to be redesigned, since that's the root problem. And if it's redesigned it's not a CP4.2. I guess that would be a CP4.3.

So if a dealer tells me they're going to put another CP4.2 in my truck that already has a CP4.2 I'm not going to waste my time and risk the service monkeys breaking something else while they're under the hood.

On the Cummins they fixed it. Cummins basically said, "You guys are ruining our reputation. Fix it or we'll go elsewhere." Next thing you know a totally new pump is being installed on Ram HDs. THAT is what should have happened on the 1500s. Apparently that's not what's happening.
A CP4.2 is already in these trucks. So a CP4.2 replacement won't be a "fix". Anything fixed is going to be redesigned, since that's the root problem. And if it's redesigned it's not a CP4.2. I guess that would be a CP4.3.

So if a dealer tells me they're going to put another CP4.2 in my truck that already has a CP4.2 I'm not going to waste my time and risk the service monkeys breaking something else while they're under the hood.

On the Cummins they fixed it. Cummins basically said, "You guys are ruining our reputation. Fix it or we'll go elsewhere." Next thing you know a totally new pump is being installed on Ram HDs. THAT is what should have happened on the 1500s. Apparently that's not what's happening.
We are getting the "NEW" fuel pumps, but not until sometime later this year when Bosch feels like saying its "all fixed" and starts distributing the new pumps. Will Bosch call them CP4.3? Who knows, but I doubt it. It will likely have some kind of marking on it depicting that it's the "fixed/recalled" pump and Bosch will leave it at that.

Right now if your pump goes BANG, you'll just get another CP4.2 that can potentially go BANG again, and you'll still need to go in for the recall fix later this year or next.

So a redesigned new pump will happen on the 1500s, just taking a little while to happen.

Technically the CP3 in the 2022-2023 Cummins is really a band aid to the problem -- well sort of -- They are using an older pump and knowing Cummins, they are probably still not happy they need to a run a CP3 on their latest engines. I wouldn't be surprised if emissions won't bite Stella/Cummins in the rear for doing this. Time will tell.

What should've happened was no new RAM 1500/2500/3500/etc with the EcoD or Cummins should've been allowed to be sold as per regulatory laws (meaning no CP3 pumps on the latest gen Cummins). Stella/Cummins got around that by Cummins using the CP3, which is the non-recalled pump. Otherwise both Cummins and Stella would've lost even more money and damages to their reputation.

I do think it's very fascinating.
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My dealership was more than willing to replace the entire fuel system on my truck when it went in for the pump failure in February. I got it back late April only for the “new” CP4.1 recalled pump to fail after 1 hour and 7 miles. So it is again sitting for a new pump and now it will actually get a new fuel system too supposedly.
As part of when the pump goes, the technicians are supposed to replace the entire fuel system (high pressure lines, hoses, injectors, return lines, etc), which also includes flushing/cleaning the entire fuel tank. They obviously forgot about doing this from what you are saying.
A CP4.2 is already in these trucks. So a CP4.2 replacement won't be a "fix". Anything fixed is going to be redesigned, since that's the root problem. And if it's redesigned it's not a CP4.2. I guess that would be a CP4.3.

So if a dealer tells me they're going to put another CP4.2 in my truck that already has a CP4.2 I'm not going to waste my time and risk the service monkeys breaking something else while they're under the hood.

On the Cummins they fixed it. Cummins basically said, "You guys are ruining our reputation. Fix it or we'll go elsewhere." Next thing you know a totally new pump is being installed on Ram HDs. THAT is what should have happened on the 1500s. Apparently that's not what's happening.
Justa fyi the .1 or .2 on the end is how many pumping chambers the pump has.
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Justa fyi the .1 or .2 on the end is how many pumping chambers the pump has.
Very true! I forgot all about that!
My dealership was more than willing to replace the entire fuel system on my truck when it went in for the pump failure in February. I got it back late April only for the “new” CP4.1 recalled pump to fail after 1 hour and 7 miles. So it is again sitting for a new pump and now it will actually get a new fuel system too supposedly.
That sounds to me like they did not get all of the metal shavings out of the system and quickly destroyed another pump
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My dealership was more than willing to replace the entire fuel system on my truck when it went in for the pump failure in February. I got it back late April only for the “new” CP4.1 recalled pump to fail after 1 hour and 7 miles. So it is again sitting for a new pump and now it will actually get a new fuel system too supposedly.
That tells me that they didn't get all the crap cleaned out of the tank.

Didn't get to Crosshairs post before I posted this.
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A CP4.2 is already in these trucks. So a CP4.2 replacement won't be a "fix". Anything fixed is going to be redesigned, since that's the root problem. And if it's redesigned it's not a CP4.2. I guess that would be a CP4.3.
Based on VW history, it will be marked as a CP4.2x. Letter designating the generational change to the CP4.2. There is no indication from what I've heard (GDE, recalls, speculation) that we will get anything other than a tweaked CP4.2 pump.
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Get with ram cares and see a different dealer.
Apparently @RamCares doesn't care,ive tried to be patient but all I got back was just a generic message back, nothing pertaining to anything that I even mentioned to them about the dealership and them trying to charge me for the parts being covered under warranty. I've waited for a response back and still nothing, silence. Im about lose my job over this and no one cares! I've called Ram Care, and warranty services as well as the recall center. No one is willing to help! Been an avid Chrysler fan, now I'm pissed!!!
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Apparently @RamCares doesn't care,ive tried to be patient but all I got back was just a generic message back, nothing pertaining to anything that I even mentioned to them about the dealership and them trying to charge me for the parts being covered under warranty. I've waited for a response back and still nothing, silence. Im about lose my job over this and no one cares!
It's on you to keep your job. Pay for the fix and keep your receipts.
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It's on you to keep your job. Pay for the fix and keep your receipts.
Yes sir... that is why I have multiple vehicles and avenues (friends/colleagues) to get to work.

I learned several decades ago that nothing is perfectly reliable.

Actually since it's been so nice in my neck of the woods the past 2 weeks, going on 3 weeks, I haven't driven the EcoD. Been sitting in my garage, but I do go out and admire it every so often... lol
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Yes sir... that is why I have multiple vehicles and avenues (friends/colleagues) to get to work.

I learned several decades ago that nothing is perfectly reliable.

Actually since it's been so nice in my neck of the woods the past 2 weeks, going on 3 weeks, I haven't driven the EcoD. Been sitting in my garage, but I do go out and admire it every so often... lol
I really don't like to look at mine. I'd rather just drive it. 🤣

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Yes sir... that is why I have multiple vehicles and avenues (friends/colleagues) to get to work.

I learned several decades ago that nothing is perfectly reliable.

Actually since it's been so nice in my neck of the woods the past 2 weeks, going on 3 weeks, I haven't driven the EcoD. Been sitting in my garage, but I do go out and admire it every so often... lol
Hi: diesel85... My '16 EcoDiesel is OK as long as it doesn't hear what I say... or know what I'm thinking!!!
Dieseldragon North shore of Lake Erie.
I really don't like to look at mine. I'd rather just drive it. 🤣

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Problem is that I want to drive it... I love driving it... don't know how to explain it... other than it's like an addiction to drive it. I just don't want to rack up the miles on it... because it translates to more maintenance I got to do. (Ya know, a love/hate relationship... haha)

Other than when I owned my last '02 Cummins that I had an addiction problem with, I'm back to having an addiction to diesel again... lol

People tell me I ought to change my field and become a truck driver. :LOL:
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Well hopefully my 2022 is one of the good ones haha. 22500 miles and no issues thus far.
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Well hopefully my 2022 is one of the good ones haha. 22500 miles and no issues thus far.
From what I've been told and read on the Internet from hours and hours of research, there are minimal problems with the Gen 3 EcoD. So the 2020-2023 EcoD's are the best, especially paired with the 8HP75 (2nd Generation) transmission.

Other than the CP4 problem (which is being addressed), I foresee a lot of Gen 3 EcoD's racking up some very high mileage later on in their lives. Kudos to Stella for owning up, unlike Ford for example on their Powerstroke.

Again makes me (and a lot of others) unhappy Stella dropped the EcoD out of the 1500. I'm sure VM Motori wasn't too keen on it either... kind of got side shafted with all of the time spent on engineering, especially when they see someone like GM making a half ton diesel and planning on keeping it for the long run. When I was shopping around for a new truck, and I was hanging around the GM dealers, it was the general consensus that GM plans on keeping the mini-Duramax until 2030. Again, they could be pushing smoke, but like the demise of the EcoD, it was all of a sudden. Then again, I just read yesterday that there is a possibility of a 1500 with a diesel/electric traction motor system, which is very interesting. So who knows, a diesel 1500 might be in the cards in a few years.
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Well hopefully my 2022 is one of the good ones haha. 22500 miles and no issues thus far.
Same here hopefully. Will be rolling close to 10,000 miles here before too long. I bought in November of last year also.
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Once the stop sale order is lifted, I might start looking to swap my 2017 for a 2022 with the higher tow rating.
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Once the stop sale order is lifted, I might start looking to swap my 2017 for a 2022 with the higher tow rating.
I wouldn't hesitate one bit. It would be a good upgrade.
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