Need input into newer GM D/A dually trucks

If you can delete it, a LMM, low miles would be great, and even not bad with emissions if you work the truck.
LMLs have the cp4 pump. Personally I’d put a disaster kit on a cp4 and replace with a cp3 if the cp4 died.
L5P trucks are the best (and most expensive) answer, short of finding a low mile LBZ, imo.

KD4UPL wrote:
The Duramax used thru 2016 was the LML. In 2017 they started with a new Duramax called the L5P. The L5P uses a Denso fuel system instead of a Bosch system. The old Bosch CP4 injection pump had a bad reputation for failures on both Chevy and Ford diesels. When the pump went out it generally took the rest of the fuel system with it. I would much prefer a 2017 or newer with the Denso pump. The L5P also gained 80 hp and 250 lb ft.

This is one of the reasons I traded in my 2012 Duramax last fall with about 109K on it. While it was a good truck I knew it had the CP4 in it and it was a potential ticking time bomb. The other reason is I didn't want the first year of a redesign of the 2020's not to mention the look especially the Chevy's are controversial, plus deals were to be had on the 2019's last fall. I agree with the 2017-2019 model years is where I would shop.

Dan

2019 is the LAST year of the true Allison 6 speed transmission ( unless you get a 4500 of bigger) as they went to the new 10 speed in 2020 ( built by GM but “ branded” Allison )... Got a 2019 Duramax Dually for hauling our AF TC on ( we’re FT ) ....Not a complaint in 23000 miles...

KD4UPL wrote:
The Duramax used thru 2016 was the LML. In 2017 they started with a new Duramax called the L5P. The L5P uses a Denso fuel system instead of a Bosch system. The old Bosch CP4 injection pump had a bad reputation for failures on both Chevy and Ford diesels. When the pump went out it generally took the rest of the fuel system with it. I would much prefer a 2017 or newer with the Denso pump. The L5P also gained 80 hp and 250 lb ft.
I am also astounded at the kind of money people pay for trucks. I've been shopping for a new work truck myself as my 2005 that I bought new now has 270,000 miles on it. Mine is still doing quite well but I know I'll need a new one before long.
When I build a crew cab diesel dually cab and chassis truck with 4wd exactly like I want it the sticker is about $56,000. The price from the dealer is around $49,000. When I look at used trucks the majority of them 5 years old or so are going for more than I can buy a new one for. I can't for the life of me figure out what you add to a truck that's worth an extra $30,000 over what I'm specifying.

That's good to know about the pump, thanks. Good information. I had to put a pump on mine at around 300,000K. Expensive...
The price difference Canada vs US is a lot. I built one last year similar to mine, a few more options but not everything and it was 84G Cdn. Hard to justify.
Boggles my mind the price of used trucks.

The Duramax used thru 2016 was the LML. In 2017 they started with a new Duramax called the L5P. The L5P uses a Denso fuel system instead of a Bosch system. The old Bosch CP4 injection pump had a bad reputation for failures on both Chevy and Ford diesels. When the pump went out it generally took the rest of the fuel system with it. I would much prefer a 2017 or newer with the Denso pump. The L5P also gained 80 hp and 250 lb ft.
I am also astounded at the kind of money people pay for trucks. I've been shopping for a new work truck myself as my 2005 that I bought new now has 270,000 miles on it. Mine is still doing quite well but I know I'll need a new one before long.
When I build a crew cab diesel dually cab and chassis truck with 4wd exactly like I want it the sticker is about $56,000. The price from the dealer is around $49,000. When I look at used trucks the majority of them 5 years old or so are going for more than I can buy a new one for. I can't for the life of me figure out what you add to a truck that's worth an extra $30,000 over what I'm specifying.

Walaby wrote:

BobsYourUncle wrote:

jdc1 wrote:
40,000+ snip

No, snip

Think he meant the new one. 4 years old and 160K kilometer's, which is, 40K klick's per year. I think he was thinking 160,000 miles per year.

That's only approx 24,000 miles, so not horrible. Little high. Probably still used for hauling.

Mike

Ah yes! Now I get it - Lol! I have to agree with you, thanks. Not enough coffee yet today! :)

BobsYourUncle wrote:

jdc1 wrote:
40,000+ miles a year? Sounds like it was used for hauling.

No, 14 years as of the 15th of this month and 403458K on it, or 250,697 miles.
That's 28,818 K per year, or 17,906 miles per year.
It has been my work truck since I bought it new Aug 15, 2006. Never used for hauling.

Think he meant the new one. 4 years old and 160K kilometer's, which is, 40K klick's per year. I think he was thinking 160,000 miles per year.

I think these year Duramax's have issues with the injectors grenading, but Im not positive. Just read a lot about the CP3 fuel injectors having issues.

That's only approx 24,000 miles, so not horrible. Little high. Probably still used for hauling.

Mike

The 2016 is four years old. It has 160000 miles on the odometer. That’s 40000 per year.

jdc1 wrote:
40,000+ miles a year? Sounds like it was used for hauling.

No, 14 years as of the 15th of this month and 403458K on it, or 250,697 miles.
That's 28,818 K per year, or 17,906 miles per year.
It has been my work truck since I bought it new Aug 15, 2006. Never used for hauling.

40,000+ miles a year? Sounds like it was used for hauling.