2020 PSD owner compares it to his 2019 PSD towing 18K

ford truck guy wrote:
Fish,

Did you need a shoe horn to get the Cummins in that >>>???? :B

That would be so DAMZ funny!!!

FishOnOne wrote:

ShinerBock wrote:

FishOnOne wrote:

ShinerBock wrote:

LOL, that is all new CP4 pumps and is one reason why it puts out higher pressure than the CP3 and even gen 1 CP4's on the older Ford's and GM's. I know Lavon(he actually made one of my tunes for my truck) and I know he hasn't had a 2020 PSD in his shop yet to even compare the two to know whether or not it turn more than the new 2020 PSD. So he is comparing to older CP4's which maxed out at 29,000 psi and Ford used every bit of that pressure(to make more power). The old CP3 Cummins maxed out at 29,000 psi, but Cummins only used 26,000 psi.

It also appears that I was incorrect on it being a CP4-27. From the looks at it from Bosch's website, the Ford and Cummins is the CP4-25 variant which maxes out at 2,500 bar or 36,000 psi. However, Cummins only utilizes 29,000 psi from the pump and Ford uses all 36,000 psi of it's max pressure. The CP4-27 is for larger engines.

LINK

Cummins increased the rpm of the CP4.2 to increase fuel volume in a 29k psi configuration compared to the Ford and GM which ran at a lower rpm. Also I'm pretty sure the 2020 Power Stroke didn't increase the rpm of the CP4.2.

So you are basing on this assumptions(aka blind faith) from what Lavon stated in his video, and not verified facts. You are assuming that Lavon is talking about all CP4 pumps from 2011-2020, and not just the gen one that both GM and Ford shared. I am willing to bet that he is only comparing the gen 2 CP4 on the Cummins to the gen 1 versions of of the CP4 found in the 2011-2014 Fords and 2011-2016 GMs. The Gen 2 had a longer stroke (which requires it to spin faster) which Ford went to in 2015. In fact, I needed to call him about a shift revision for my tune anyways so I can verify tomorrow.

Good grief... spin it however you like.

You mean the opposite of the way you are spinning it. At least I won't be going off of assumptions when I talk to him tomorrow.

Fish,

Did you need a shoe horn to get the Cummins in that >>>???? :B

FISH your truck looks good! Kinda looks like mine with the "Golden Arches"

Cummins12V98 wrote:
FISH is this your truck? Son took this pic East side DFW, TX.

Seems it would fit your personality. :B

Not hardly... This is my look with 187k miles.

FISH is this your truck? Son took this pic East side DFW, TX.

Seems it would fit your personality. :B

I agree with all of that. Especially when the value of the truck is less than the cost to fix it. That will park a lot of trucks that could have gone on to live longer lives and upset a lot od owners that now own a new piece of lawn art. Bosch, in my view should have been held more accountable for that. I guess OEM's option in using something other than Bosch is how that is going to be handled. My point was simply the fluctuating fact base used by some to keep waving their favorite flag.

^Mayne the early 6.7 Powerstrokes will become bargain buys for the machanically adept folks just like the 6.0s!

ksss wrote:

Cummins12V98 wrote:

blofgren wrote:

Cummins12V98 wrote:
Has ANYONE heard of a 2019 or 2020 RAM/CUMMINS Bosch fuel pump failure??????

Same with FORD??????

Yes, there was a 2019 Ram/Cummins failure; I'm sure Fish has it bookmarked. :B On one of the Ram forums, there was a tech saying that he fully expected to see them fail.

As for 2020's, it is likely too early to see any but I'm sure they're coming.

Given the risk of this disaster, there is no way that I will ever own a truck with one.

Ok so that’s one. Was there any follow up as to if it was the pumps fault or possibly someone dumping DEF in the fuel tank.

I am a member on the TDR, not a peep.

Cummins12V when Cummins was using the CP3 it was a main talking point of yours as one of the major advantages of the RAM. Now that Cummins has a 4, you ask for proof its not a POS. You never accepted that in the years before. A CP4 was poop, plain and simple. I think at its worst the 4 had what...2% failure rate in FORD and GM? Costly as hell if the warranty doesn't pick it up, but a rather small failure rate. Yet you played it like a fiddle. Now you take the exact opposite side when RAM takes the CP4. Consistency is a major part of credibility.

It's not the failure rate that is a problem; it's the catastrophic damage that occurs that is the problem. I'm sorry, but the CP4 is a disaster, plain and simple. If it simply quit when it failed like the CP3, that would be one thing, but that's not what happens. And there have been plenty of them that have failed with no signs of any contamination whatsoever. There have been several news stories in my area about it with VW diesel car owners PO'd because of the huge repair bills they have faced when their pumps grenaded.

And remember, all vehicles are eventually off warranty. I still predict many 6.7L Ford trucks in the graveyard early because the cost to repair them will far surpass the value of the truck. As it is, the early 6.7L trucks are going for low $20k's CDN in my area now.

ShinerBock wrote:

FishOnOne wrote:

ShinerBock wrote:

LOL, that is all new CP4 pumps and is one reason why it puts out higher pressure than the CP3 and even gen 1 CP4's on the older Ford's and GM's. I know Lavon(he actually made one of my tunes for my truck) and I know he hasn't had a 2020 PSD in his shop yet to even compare the two to know whether or not it turn more than the new 2020 PSD. So he is comparing to older CP4's which maxed out at 29,000 psi and Ford used every bit of that pressure(to make more power). The old CP3 Cummins maxed out at 29,000 psi, but Cummins only used 26,000 psi.

It also appears that I was incorrect on it being a CP4-27. From the looks at it from Bosch's website, the Ford and Cummins is the CP4-25 variant which maxes out at 2,500 bar or 36,000 psi. However, Cummins only utilizes 29,000 psi from the pump and Ford uses all 36,000 psi of it's max pressure. The CP4-27 is for larger engines.

LINK

Cummins increased the rpm of the CP4.2 to increase fuel volume in a 29k psi configuration compared to the Ford and GM which ran at a lower rpm. Also I'm pretty sure the 2020 Power Stroke didn't increase the rpm of the CP4.2.

So you are basing on this assumptions(aka blind faith) from what Lavon stated in his video, and not verified facts. You are assuming that Lavon is talking about all CP4 pumps from 2011-2020, and not just the gen one that both GM and Ford shared. I am willing to bet that he is only comparing the gen 2 CP4 on the Cummins to the gen 1 versions of of the CP4 found in the 2011-2014 Fords and 2011-2016 GMs. The Gen 2 had a longer stroke (which requires it to spin faster) which Ford went to in 2015. In fact, I needed to call him about a shift revision for my tune anyways so I can verify tomorrow.

Good grief... spin it however you like.