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Discussion Starter #1
Had to go get a new tooth (long story) this morning. So into a town near Tampa I went. After the ordeal I visited Furman Chevrolet in Brandon. Very nice people. From Parts, where I went first, to sales managers and a "product specialist", I felt like I was
... visiting with slow-learning students. Everyone was polite. I was polite, a change from normal.

The goal was to find of if the injection pump in the 3.0L GM diesel was a Denso product as is the injectors. Then I figured I would find out about some other parts. That's why I started at the Parts counter to see what might be in their computer on the subject. Well I got the answer there and the same answer from inside the heads of all I pleasantly visited with.

What 3.0 diesel?

Do we have it? I can check our inventory of 2019's. You like the Denso pump in the new Duramax? You know there will be a refresh on the 2500 chassis in 2020

There is nothing in the computer for parts or in the sales computers for any information, including availability. Near two full years after introduction and an earlier time when they may have been able to take orders, not a single person I spoke with led me to believe they even heard of it.

Nothing more said is most appropriate.
 

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Had to go get a new tooth (long story) this morning. So into a town near Tampa I went. After the ordeal I visited Furman Chevrolet in Brandon. Very nice people. From Parts, where I went first, to sales managers and a "product specialist", I felt like I was
... visiting with slow-learning students. Everyone was polite. I was polite, a change from normal.

The goal was to find of if the injection pump in the 3.0L GM diesel was a Denso product as is the injectors. Then I figured I would find out about some other parts. That's why I started at the Parts counter to see what might be in their computer on the subject. Well I got the answer there and the same answer from inside the heads of all I pleasantly visited with.

What 3.0 diesel?

Do we have it? I can check our inventory of 2019's. You like the Denso pump in the new Duramax? You know there will be a refresh on the 2500 chassis in 2020

There is nothing in the computer for parts or in the sales computers for any information, including availability. Near two full years after introduction and an earlier time when they may have been able to take orders, not a single person I spoke with led me to believe they even heard of it.

Nothing more said is most appropriate.
Not shocked.
 

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Discussion Starter #3
The only reason the "Product specialist" knew there was a Denso pump in the 2019 Duramax was because I told him. Nice people trained to say the right thing and be very congenial. never been in there before.

They make me feel smart and smart is good.
 

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I believe it would be a safe bet the New Chevy 3.0 diesels will have the Denso HP fuel pump , It’s already in their 2.8 Baby D Max , The 2018 Chevy Cruze diesel , The Heavy Duty Duramax diesels , apparently Chevy is utilizing the Denso pumps in all their diesels ..Maybe GM smartened up a little bit :confused:
 

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I didn't read the entire sticker. But a couple of things I noticed:
Dave Smith said:
Engine, Duramax 3.0L Turbo-Diesel I6 $3,890.00
Dave Smith said:
Tow/Haul mode
Raises transmission upshift points to provide more power to accelerate with a trailer or heavy load
Raises downshift points to use engine compression to help slow the truck instead of merely braking
Powertrain Grade Braking
Automatically uses the engine and transmission to slow the truck to maintain desired speeds when driving downhill
Reduces brake wear and increases vehicle control
 

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Discussion Starter #10
With a fuel mileage rating of 19 - 22 mpg??? Thinking something is wrong. Guessing it is a confabulation of advertisements compiled into a pile, VIN# or not. Dave Smith might be related to that Kernersville Ram advertising Ecodiesels with real low mileage ratings. No clue why things are so confused in those ads.

**** Go look into the options. It clearly says "Regular Unleaded" ***

The parts guy said he needed either a VIN # of the vehicle or an exact model # to find any information on the 2020 3.0L Chevrolet 1500. He said he never heard of it, questioned if it was in the 2019 data base. Then he did look around or mess around with his computer, ending up a blank. Then he told me to try that product specialist guy but I started at two sales managers doing the "big-shot office sit".
 

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I believe it would be a safe bet the New Chevy 3.0 diesels will have the Denso HP fuel pump , It’s already in their 2.8 Baby D Max , The 2018 Chevy Cruze diesel , The Heavy Duty Duramax diesels , apparently Chevy is utilizing the Denso pumps in all their diesels ..Maybe GM smartened up a little bit :confused:
Bosch fuel pumps are well made. Bosch specifies a lubricity standard for their pumps that American diesel fuel doesn't meet. The Denso fuel system generates pressures up to 2500 bar, nearly 37,000 psi. Combine this with American diesel fuel and we are unlikely to see an improvement in long term reliability.
Lubricity and cleanliness are the two most important parameters in diesel fuel.
 

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Discussion Starter #12
Bosch fuel pumps are well made. Bosch specifies a lubricity standard for their pumps that American diesel fuel doesn't meet. The Denso fuel system generates pressures up to 2500 bar, nearly 37,000 psi. Combine this with American diesel fuel and we are unlikely to see an improvement in long term reliability.
Lubricity and cleanliness are the two most important parameters in diesel fuel.
If the Bosch pumps are really well-made and American fuel has them come apart, they are NOT well-made.

Saw that the GM 3.0L diesel, as reviewed by Fast Lane, is supposed to be currently sold by GMC dealers. Why this Chevrolet dealer was clueless is now more mysterious to me. Next dealer I visit will be a GMC. More to see in this video.

https://www.tfltruck.com/2019/08/2020-gmc-sierra-1500-at4-off-road-3-0l-duramax-takes-on-mud-rocks-first-drive-video-review/
 

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I have a friend who is sales manager of a large Chevrolet dealership in Northern Ohio and he was asking my about my '14 EcoDiesel. Gave him the story and then told him I saw a YouTube review from a guy who did the press junket for the new Chevy 3.0 diesel and that he liked it better than the Ram or Ford - mainly because the towing loop with an 8000 pound trailer returned 15.2 mpg's. My buddy said, "You're talking about the diesel in the Colorado, right?" I told him that Chevy/GMC has a 3.0 inline 6 diesel for the 1500 - "That's the first I've heard about that - nobody's told us about that engine and we just had meetings about the 2020 vehicles..."

Shake my head....


Bob
 

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Several manufacturers have announced diesels that NEVER launched. At his point i believe it will however clearly may be delayed until 2021?? Dealers and mgt typically prefer 'plausible deniability'...how many of us walked into a dealer with payout/AEM info and they 'had no idea'??
 

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VW and FCA's EPA debacles slowed new diesel certification and production. The 3.0L Dmax's EPA certification took longer than anticipated and eliminated any chance for the planned 2019 roll out.

Only the new ED has yet to be EPA certified. Sounds like it might be anytime now or maybe the EPA continues to give them trouble.

I think Cap is right about typical dealership employees - they are hired if they can produce fog on a mirror.
 

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Discussion Starter #16
Just might be an EPA certification issue. No fuel mileage ratings published yet.

Might be why dealers are not notified yet.
 

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If the Bosch pumps are really well-made and American fuel has them come apart, they are NOT well-made.

Saw that the GM 3.0L diesel, as reviewed by Fast Lane, is supposed to be currently sold by GMC dealers. Why this Chevrolet dealer was clueless is now more mysterious to me. Next dealer I visit will be a GMC. More to see in this video.

https://www.tfltruck.com/2019/08/2020-gmc-sierra-1500-at4-off-road-3-0l-duramax-takes-on-mud-rocks-first-drive-video-review/
Capt. that is like saying a cummins that blew up isn't well made because it blew up while running 0w20 oil. It is stupid that the bosch pump is so widely used in America when American fuel reportedly doesn't have sufficient lubricating properties to support the pump. It doesn't mean the pump isn't well made, it means its being improperly installed/used.
 

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Over on the Cummins forum another member verified another 2019 Cummins cp4 failure, Cummins is replacing the entire engine each time... So far this is 2 failures, both engines replaced..

Not sure which area of the country the first cp4 pump blew , but the second appears to be in Pennsylvania and I remember several of our Pennsylvania members having injectors replaced , one member even mentioned either a FCA rep or dealership employee mentioned it was because of the fuel in their area?

IMOP you can keep the quality cp4 pump, I’ll take an old fashion rusty steel housing cp3 pump any day, Someday I might be passing through Pennsylvania and I don’t want to break down ..:p
 

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Over on the Cummins forum another member verified another 2019 Cummins cp4 failure, Cummins is replacing the entire engine each time... So far this is 2 failures, both engines replaced..

Not sure which area of the country the first cp4 pump blew , but the second appears to be in Pennsylvania and I remember several of our Pennsylvania members having injectors replaced , one member even mentioned either a FCA rep or dealership employee mentioned it was because of the fuel in their area?

IMOP you can keep the quality cp4 pump, I’ll take an old fashion rusty steel housing cp3 pump any day, Someday I might be passing through Pennsylvania and I don’t want to break down ..:p
The indestructible Cummins has met its match? And it’s the CP4.2 that the other guys have been using with pretty good success overall? It’s also been quite tough with the EcoDiesel platform. Seems kinda ridiculous to replace an engine for a simple fuel pump failure, replace injectors, replace injection pump, clean the tank and change the filters and be done. I put a CP3 in addition to the CP4.2 on one of my powerstrokes, best of both worlds now lol


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I’m only guessing now , But Cummins is extremely cautious with their engine reputation, Especially with the 6.7 ..... Again just a guess but I couldn’t stand it when I had to finish someone else’s engine work, because they got in over their head .... Because no telling what they did or broke or stripped out Mis-timed did not properly measure tolerance’s Ect..... Depending on circumstances, I would try to dissemble and start from the beginning, I was very cautious ....

Again just guessing Cummins most likely didn’t want any outside interference with what actually caused the failures..

Now I’m well aware of extremely tight tolerance’ with the injectors and they clog and Mis-fire very easily , But fuel is still passing thru into the cylinders....

Again just an educated guess , Cummins most likely is going to be checking Cylinder walls and Piston rings for MICROSCOPIC SCARING , from the failure’s of the cp4 pumps ... Grit makes Grief ...

The average diesel owners want a trouble free long life engine....
 
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