[bill-e]

I just received this email this morning. Probably for my old 2015 (2014-2019) but we'll see if it gets expanded. It' currently doesn't apply to my 2020 VIN.

Safety Issue Type: Recalls June 09 2022 NHTSA Campaign Number: 22V406000
High Pressure Fuel Pump Failure Fuel starvation may result in an unexpected loss of drive power, increasing the risk of a crash.

 

[Captainmal]

WOW!

That's the CP4 Ram uses in the Ecodiesel. Curious why they stopped at 2020 as it is still a version of the CP4 today.

Don't "hold your breath". My 2019 Cummins has had that recall for maybe 9 months and though they are doing the 2020 models, no parts are available for mine yet. The replacement is the old CP3 pump used up to 2018 in the Cummins and from 2020 to present. What they will use for the Ecodiesel/Jeep is interesting as there never was a CP3 pump used for them. My guess is the CP4 was modified in 2020 Ecodiesel engines and they are switching to that model. From what I know it still can rotate the follower and get trashed.

It will be very interesting to see just what pump model they might change it to.

 

[biodiesel]

WOW!

X2!

I would love to get a NEW high pressure fuel pump.

 

[Dieseldragon]

Hi: bill-e... I wouldn't get too pumped about it!!!
Dieseldragon North shore of Lake Erie.

 

[MAS]

Bet after the emissions lawsuit engine failures and now this they severely regret producing this vehicle!

 

[biodiesel]

Bet after the emissions lawsuit engine failures and now this they severely regret producing this vehicle!

I find it interesting that NHTSA is more worried about the HPFP causing an unexpected loss of drive power, increasing the risk of a crash than the engine itself! I would put money on it that there are way more engine failures than CP4 pump failures!

 

[ruraldodge607]

How many HPFP failures have we seen in the forums? I feel like the most I remember seeing were caused by the lift pump failing out which then caused the HPFP to nuke itself.

 

[RansomT]

Just got notice that my 2018 is included in the Z46 recall. But "remedy not yet available". Shows some 2014-2020. I guess the 2020 is the Jeep version?

 

[Patroller8D]

If they push it out long enough, I suspect most of these engines will be in the scrap heap on the way to being melted down. I bet they kicking their butts for not having Cummins make a small 3.5 to 4.0 straight 6 for the 1/2 tons. And instead of glow plugs, use a grid heater.

 

[MR. TED]

Even through this is definitely an upgrade just the thought of any dealer putting their hands on my "Perfect till now" Engine gives me the creeps.

 

[ncskibum]

I'm really surprised that NHTSA acted on the HPFP failure for this engine but not the VWs that also use a version of the Bosch CP4. NHTSA investigated the failures in the VWs in 2012 and determined there was not enough evidence to warrant a recall. IIRC, it was estimated that about 10% of the VWs from 2009-2012 had failed pumps. My thoughts were that since there was no loss of life, there was no reason for NHTSA to issue a recall.

 

[ncskibum]

If they push it out long enough, I suspect most of these engines will be in the scrap heap on the way to being melted down. I bet they kicking their butts for not having Cummins make a small 3.5 to 4.0 straight 6 for the 1/2 tons. And instead of glow plugs, use a grid heater.

But Cummins also used the Bosch CP4 fuel pump. Hence, the recall on the heavy duties. The fuel pump failure is not related to the low end failure.

 

[biodiesel]

Even through this is definitely an upgrade just the thought of any dealer putting their hands on my "Perfect till now" Engine gives me the creeps.

I've got an awesome designated EcoDiesel dealer tech, so I'm not worried about it. With that said, I understand your concerns. Many dealers don't have competent techs.

 

[ajb3015]

I didn't get the email, but it's listed for my truck on the mopar website, also "remedy not yet available" which is normal now days.

If you read the associated documents linked at the bottom of the notice, it specifically names the CP4.2 as the issue.

It also states that the recall covers 29,279 Jeep Grand Cherokees with engines produced between December 2012 and October 2019 which I'm pretty sure covers all the Jeeps. And 109,366 Rams with engines built between June 2013 and December 2019. FCA conducted an internal investigation from february 2022 to May 2022 and found 215 customer assistance records, 1061 warranty claims and 3 field reports of failures.

So of 138645 vehicles there were 1279 reported failures or 0.92%. It's very likely that there were unreported failures so call it 1% (which is noted on the same document).

I'm really surprised that NHTSA acted on the HPFP failure for this engine but not the VWs that also use a version of the Bosch CP4. NHTSA investigated the failures in the VWs in 2012 and determined there was not enough evidence to warrant a recall. IIRC, it was estimated that about 10% of the VWs from 2009-2012 had failed pumps. My thoughts were that since there was no loss of life, there was no reason for NHTSA to issue a recall.

If that is the case, then maybe someone should push to have that reopened. I'm not sure what the failure rate was on the Cummins but if 1% is good enough for the EcoD then 10% is a no-brainer. the report also states that there are no known accidents or injuries as a result of HPFP failure on the EcoD

 

[Kazimodo]

" Dealers will replace the HPFP, and inspect and replace, if necessary, additional fuel system
components, free of charge."

is there a bullet proof HPFP out there to replace the CP4 ????
...."remedy not yet available" ,

 

[MAS]

If they push it out long enough, I suspect most of these engines will be in the scrap heap on the way to being melted down. I bet they kicking their butts for not having Cummins make a small 3.5 to 4.0 straight 6 for the 1/2 tons. And instead of glow plugs, use a grid heater.

Cummins already produces a 3.8 liter 4 cylinder Cummins I think would be great, but apparently they only sell it overseas even though it meets on road emissions requirements for here too.

 

[MR. TED]

If they push it out long enough, I suspect most of these engines will be in the scrap heap on the way to being melted down. I bet they kicking their butts for not having Cummins make a small 3.5 to 4.0 straight 6 for the 1/2 tons. And instead of glow plugs, use a grid heater.

Well, The Cummins in the Nissan turned out to be a Real Dog. 🤷‍♂️

 

[Dieseldragon]

Well, The Cummins in the Nissan turned out to be a Real Dog. 🤷‍♂️

Hi: MR. TED... A very expensive Dog too!!! N/A in Canada you say?
Dieseldragon North shore of Lake Erie.

 

[Crash68]

Cummins already produces a 3.8 liter 4 cylinder Cummins I think would be great, but apparently they only sell it overseas even though it meets on road emissions requirements for here too.

They would have to do a fair amount of tuning to get the HP closer to 300.

Another option for an engine would be the Detroit Diesel 4.0L DELTA engine that was R&D in the Dakota. It never made it to market because the executives didn't think anyone would buy a half ton diesel. It too would need some modernization.

 

[MAS]

Seems as though Cummins more industrial applications are all low HP. The 2.8 duramax is 26% less displacement, I’d bet they could easily get it to numbers that would work. Also feeding 2 less cylinders I’d think economy would be better.