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legacy_etu

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My 1996 Peterbilt 379 with a Cummins has 800k miles on it and is all original. Zero issues.

My 2022 EcoDiesel blew the pump and took the fuel system with it at 9500 miles. FCA bought it back and I picked up a 2023 gasser. The MPG has dropped but I didn’t buy either for the economy.

Modern diesel engines are absolutely hamstrung by EPA mandates.
Holy crap. 800K miles??!!
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ShadowsPapa

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FCA bought it back and I picked up a 2023 gasser. The MPG has dropped but I didn’t buy either for the economy.
I bought my JT for the economy. Much better than a Silverado full-size, light years better than an F250, and even better than my 2004 WJ by 1 to 2 mpg.
On the other hand - what I save in gas I spent on the truck in other ways....... geesh.

Yes, it's the mandate for smaller, lighter, keep LA clean type of stuff that's killing these in the US.
 
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Ironman 67

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My 1996 Peterbilt 379 with a Cummins has 800k miles on it and is all original. Zero issues.

My 2022 EcoDiesel blew the pump and took the fuel system with it at 9500 miles. FCA bought it back and I picked up a 2023 gasser. The MPG has dropped but I didn’t buy either for the economy.

Modern diesel engines are absolutely hamstrung by EPA mandates.
It's strange to me that the big 3 really don't has as many issues but what is the deal with 3.0??
6.4 power stroke 350 I had back in 08 till 14 when I traded for new 350 it has no fluid just regeneration.
One of my Kubota tractors does Regen with no fluid
 

Pescatoral Pursuit

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Yeah, emissions, DEF and so on come into this, but............ if you ignore the EPA's
Yeah you smoke, eat crap, and live a sedentary lifestyle, but if you ignore that, why do you think it is you have poor health? Why even bring that up?

As I said, there's not enough high mileage examples to conclude whether it'll be a survivor, but it seems stalantis is completely abandoning the platform and a cursory Internet search appears that no one foreign or domestic is picking it up.

High torque and economy to size/ weight, you would think might have had promising agricultural/ industrial applications or even 3rd world transportation/ automotive where it would be unencumbered by emissions regulations.

Draw your own conclusions.
 

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ShadowsPapa

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I don't smoke, I do eat stuff that might kill some people, but far from sedentary (last week in UC, then in ER, the doctors commented when they asked me to push back or pull back my arms when testing for stroke - "wow, you're strong". LOL, never thought I'd hear that but then I broke a JT body bolt with a 15" breaker bar, too)
Out of shape, yea, for sure - but the air here is clean unless Canada is on fire, and the water is clean (unless you drink Des Moines water - then last I knew, you turned the faucet and rocks came out)

One reason we don't see high mileage 3.0s is that fuel pump, not a Stellantis creation. GM people are facing the same situation.

In any case, this version has only been around since about 2019, so 4 years and the last of those years plagued by the fuel pump issues and the "modernization" so it's not had a chance to go many miles. Seems that almost all issues have involved the newer parts and not parts from prior generations.
 

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Jteakus

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Yes, the CP4 is the biggest problem. It is a bad design and can eat itself and destroy/ruin injectors, fuel rails and other fuel related hardware with metal when it does. Dodge/Cummins went back to a CP3 pump and the aftermarket is offering CP3 conversion pumps for Duramax and Powerstrokes but we most likely won't see one. I am interested to see what Jeep does for the "recall". I have read they are only going to inspect for metal particles. If none are seen call it good, If that is their fix I intend to purchase an aftermarket pump that has been modified to correct the CP4 failure point along with an aftermarket tune by GDE or others and keep rolling.
 

Jteakus

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I want to keep both my diesel jeeps diesel and don't see a viable engine option to swap in. The torque and fuel economy are too good to lose.
 

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Yes, the CP4 is the biggest problem. It is a bad design and can eat itself and destroy/ruin injectors, fuel rails and other fuel related hardware with metal when it does. Dodge/Cummins went back to a CP3 pump and the aftermarket is offering CP3 conversion pumps for Duramax and Powerstrokes but we most likely won't see one. I am interested to see what Jeep does for the "recall". I have read they are only going to inspect for metal particles. If none are seen call it good, If that is their fix I intend to purchase an aftermarket pump that has been modified to correct the CP4 failure point along with an aftermarket tune by GDE or others and keep rolling.
What I read in the recall.

Under Repair Description. It says that FCA US will replace the fuel pump and any other fuel systems components.
 

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Jteakus

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Jteakus

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From what I understand Bosch has not changed the failure point of the pump. If Jeep is installing another pump identical to the one they are removing what has been gained besides getting us closer to milage/time warranty expiration?
 

Lost1wing

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If emissions is the problem causing all these issues then you waste more resources vs pre emission!
Evs are not the solution and worse!
I have had pre emission and emissions oil burners and never had issues before.
This includes Cummins, power stroke and Duramax.

The only issues I know people having with them is the ones pulling 35k all the time.

I don't think the eco diesel is a bad engine and I am not sour on it. I know it was based on a Marine application.
Émissions are the only thing that have failed on my Duramax. DEF x3, grid heater, nox sensor wiring that caused a 9 injector and particulate filter issue. Hauling isn't the cause or a factor in my opinion, just crappy design and parts.
 

Lost1wing

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It's strange to me that the big 3 really don't has as many issues but what is the deal with 3.0??
6.4 power stroke 350 I had back in 08 till 14 when I traded for new 350 it has no fluid just regeneration.
One of my Kubota tractors does Regen with no fluid
The cp4 is a very hot topic on the Duramax sites. $10k dealer bill for some repairs. Every time I start the truck I wonder if today is the day my fuel pump grenades. I'm sure some here feel the same with the 3.0.
 

sharpsicle

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There must be an echo in here.
Well when you quote yourself, yeah there will be ?

What’s with all the hostility lately? You guys are saying the same thing and agreeing with each order. Why start attacking?

What we’re all saying is that the problem with these 3.0 engines isn’t anything emissions related. It’s fuel pump related. That’s why they’re not living long, that’s why they’re having so many problems, that’s why they don’t have a bright future right now. The pump, not the emissions equipment. It’s hard to evaluate how much emissions equipment actually impact it when they’re dying a young death from something else first.
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