High Pressure Fuel Pump Failure at 3,800 miles

[Ozymandias]

I'll agree on Point 1, but not Point 2. Bosch are money grubbers like all large corporations. As long as enough make it out of warranty, combined with what gets denied due to contamination, whether real or imaginary, they win either way. I have no blind faith in any company anymore, including Cummins.

Yes and they don't make money when the failure rate is to high.
And even out of warranty they have reputation to lose.

 

[TFucili]

And even out of warranty they have reputation to lose.

Between being directly involved in the VW debacle, and the CP4 history, their reputation is long gone in my view. They have ZERO integrity.

 

[SnoKing]

But you know that this CP4 pump runs in millions of European Diesel cars right?

It's the same with the injectors, you can not tell it that they are improved just from looking at them,they look the same.
But they aren't, metallurgy and other tiniest things changes and that not only once, permanently.

Only Martin could enlighten us more, because he has the ability to watch behind the scenes.

But I'm so tired to hear all the time the same old story from back a decade failings, that doesn't make sense at all.
We know nothing about the reasons for the premature failures there, and it is also an entirely different setup.

Many people here blame Ford and Chevy to build ****ty pickup that doesn't last - but all of a sudden they are the benchmark?
Come on.

The government here first start investigating VW for CP4.1 failures and because of reports to safercar.gov added Ford trucks. Did VW put a different CP4.1 in the European models, or is it the result of the known poor quality of America diesel fuel, that is said to not meet Bosch's specs? If the later is the case, why is Bosch selling into this market. Giving it product a bad name.

 

[dieselshadow]

1 of 1000 will see their demise with 120,000 miles.

After 120,000 miles, we will likely see significantly more.

Where’s this data? Do you have studies or at least some stats? Or did this come from your backside?

 

[TFucili]

Yes, from my backside, of course.
https://www.forbes.com/sites/doronl...million-fine-from-vw-dieselgate/#39dfef9521f2

https://www.ft.com/content/964a2f72-e898-11e6-967b-c88452263daf

I won't waste my time digging up any of the myriad articles on the CP4. At this point if someone is a CP4 denier, it's too late.

 

[dward]

The Hemi or Ford 7.3 is looking better.

 

[dieselshadow]

Yes, from my backside, of course.
https://www.forbes.com/sites/doronl...million-fine-from-vw-dieselgate/#39dfef9521f2

https://www.ft.com/content/964a2f72-e898-11e6-967b-c88452263daf

I won't waste my time digging up any of the myriad articles on the CP4. At this point if someone is a CP4 denier, it's too late.

I quoted Newsa, not you sir.

But I still haven’t seen anything posted about stats on Cummins CP4 failures other than this one report. I’m not convinced everyone is doomed who owns one yet. If it’s truly a problem, we’ll see a lot more of it and we’ll have a fix or workaround like we always have on the TDR. But this would have to be something FCA would need to stand up to and fix if it is a problem.

 

[TFucili]

I quoted Newsa, not you sir.

But I still haven’t seen anything posted about stats on Cummins CP4 failures other than this one report. I’m not convinced everyone is doomed who owns one yet. If it’s truly a problem, we’ll see a lot more of it and we’ll have a fix or workaround like we always have on the TDR. But this would have to be something FCA would need to stand up to and fix if it is a problem.

My bad. On my end the quote does not show up, and it appeared you were responding to my prior post. It's all good.

 

[Newsa]

Where’s this data? Do you have studies or at least some stats? Or did this come from your backside?

Just conjecture based on the CP4.2 being described in a lawsuit as being incompatible with US spec diesel. And refusal to address the design to prevent roller can follower from turning so the roller doesn't roll like it should, but slides instead.

I didn't say all of them will be ticking time bombs. But it does seem like failure to address the rolling can follower that might start sliding rather thanwthan rolling and eventually wear and cause problems. Not right at 120,000 miles. But increasing in likelyhood with high mileage and after the warranty has expired.

 

[gsbrockman]

My bad. On my end the quote does not show up, and it appeared you were responding to my prior post. It's all good.

Same here.....but I then remembered I had Newsa on my ignore list.

 

[TFucili]

Same here.....but I then remembered I had Newsa on my ignore list.

Ohhhh, is THAT how that happens?

 

[AH64ID]

Same here.....but I then remembered I had Newsa on my ignore list.

Haha. Hilarious.

I’ve been tempted many times but never hit the button. I’ve always wondered what would happen to a thread with an ignored person.

Comedy is what happens... well for the rest of us

 

[dieselshadow]

I had a good post to reply with, but I can’t really post it. All I can say now is Newsa is also on my ignore list. There has to be something in common here...

 

[Wayne M.]

I had a good post to reply with, but I can’t really post it. All I can say now is Newsa is also on my ignore list. There has to be something in common here...

Possibly me three.

Does anyone know or can find out what HPFP the Ford 6.7 uses? Zero failures with them.

 

[dieselshadow]

Possibly me three.

I honestly thought I’d never have to do that. But when you go to such extremes and won’t have a decent adult conversation, well, bye.

#ad

 

[SnoKing]

Possibly me three.

Does anyone know or can find out what HPFP the Ford 6.7 uses? Zero failures with them.

The Ford 6.7 has used the Bosch CP4-2 from the get go, and has had many failures over the years, and tried to blame most the the failures on the owner. GM used it for a few years with many failures, however they quietly covered the failures under warranty. When they could no longer stand the failures they switch to the Desmo injection pump.

https://fordauthority.com/2020/05/f...re-defective-claims-new-class-action-lawsuit/

Note of GM and CP4:
"The LML was first introduced in 2011 phasing out the previous LMM platform and continued its run until the end of 2016 when it was replaced with the 2017 L5P Duramax. These LML trucks were fitted with the dreaded Bosch CP4 that has been an issue from day one of production with the LML trucks.Oct 2, 2019"
https://www.dirtydieselcustom.ca/bl...rst introduced,production with the LML trucks.

 

[Wayne M.]

Well, from personal experience with a large fleet of ford super dutys and a heavy bio blend that yields a lot of water in fuel lights, whatever pump that is in these trucks are doing very well.

 

[AH64ID]

Well, from personal experience with a large fleet of ford super dutys and a heavy bio blend that yields a lot of water in fuel lights, whatever pump that is in these trucks are doing very well.

It does make one wonder, since the Ford 6.7 and the CP4 have a horrible reputation. Most the bad rap of the CP4 comes from the 6.7 Ford, with the rest being from the CP4 Duramax. So why are you seeing different results.

Bio has a lot better lubricity than #2 and maybe that’s what the CP4 needs, despite higher water content.

In theory most the water should stop at the filter, so maybe it’s simply a good example of the filter doing it’s job and the bio fuel lubricating better than straight #2.

 

[SnoKing]

Well, from personal experience with a large fleet of ford super dutys and a heavy bio blend that yields a lot of water in fuel lights, whatever pump that is in these trucks are doing very well.

You have personal experience with the Ford Diesels, yet you do not know what injection pump is on them?

 

[Ozymandias]

That story about the sulfur is just not true.
We had the ULSD 10 years prior to the US and we are down to 10ppm now compared to 15ppm in NA.

https://en.m.wikipedia.org/wiki/Ultra-low-sulfur_diesel