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Duramax Fifth Generation: 2011-2016 (LML) Discuss the fifth generation (2011-2016) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 01-06-2018, 08:30 AM   #11 (permalink)
jeephauler
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Quote:
Originally Posted by dmax3500 View Post
so the dealer just and beats up and scratchs your truck?


because why?,
they don't want you as a customer?
ive worked at new car dealers for 25+ years,and haven't seen anything like this done

Yeah happens most times I have put it in the shop. City dealerships have such small lots that they cram the vehicles so closely together you can't even walk between the cars.

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Old 01-06-2018, 08:38 AM   #12 (permalink)
jeephauler
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Originally Posted by Rvn4me View Post
GM Part :23379348 RESERVOIR KIT, Evaporation Emission System(Fuel Tank End)
RESERVOIR KIT,EMISSION REDUCTION FLUID TANK(INCLUDES 3,4,13-16)(INCLUDES TEMPERATURE SENSOR & HEATER) $174.00

How much is the Dorman part# 904-374
Over $200, but can't find one online. Also some refurbished units out there for more than that, but again nobody seems to have one.

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Old 01-06-2018, 08:04 PM   #13 (permalink)
G2GBY
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Quote:
Originally Posted by jeephauler View Post
Over $200, but can't find one online. Also some refurbished units out there for more than that, but again nobody seems to have one.
To answer your first question I Googled "Duramax Dorman part# 904-374" and nobody on the 4 Main duramax diesel sites have used one.
So if you do find one you'll be the first to have any info on them.
You might have to buy an OEM one then.
There's over 300,000 OEM ones availabile.

Last edited by G2GBY; 01-06-2018 at 08:15 PM.
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Old 01-07-2018, 08:26 AM   #14 (permalink)
jeephauler
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Originally Posted by G2GBY View Post
To answer your first question I Googled "Duramax Dorman part# 904-374" and nobody on the 4 Main duramax diesel sites have used one.
So if you do find one you'll be the first to have any info on them.
You might have to buy an OEM one then.
There's over 300,000 OEM ones availabile.
Wanted to avoid OEM, since they are ones which are failing. Thought maybe someone else could get it right. Thinking about just doing a full emmissions delete at this point.
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Old 02-26-2019, 07:11 AM   #15 (permalink)
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What is the Kennedy Diesel limited emissions tune?
Do I have to have a programmer and buy his tune?

I don't see the price on his website. Can someone PM the expected price?

Thanks
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Old 02-26-2019, 07:16 AM   #16 (permalink)
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Originally Posted by Deshet View Post
What is the Kennedy Diesel limited emissions tune?
Do I have to have a programmer and buy his tune?

I don't see the price on his website. Can someone PM the expected price?

Thanks

You will need to call him and talk with him about what kind of a tune you want. He loads tunes on an Autocal/EFI Live device and you can upload tunes from there.
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Old 02-26-2019, 08:53 AM   #17 (permalink)
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Quote:
Originally Posted by Deshet View Post
What is the Kennedy Diesel limited emissions tune?
Do I have to have a programmer and buy his tune?
I don't see the price on his website. Can someone PM the expected price.
I'm pretty sure John keeps emissions intact. His tuning is cleaner reducing soot load with less regen.
Don't see a LML in your signature but I take it you have one since your asking in Fifth Generation.

You must of missed his LML pricing.
https://www.kennedydiesel.com/catego...ubCategory=204

Last edited by G2GBY; 02-26-2019 at 09:01 AM.
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Old 02-27-2019, 12:18 AM   #18 (permalink)
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Thanks...It looks like the Cab and Chassis 6.6 in 2011 is still something that is being figured out.

A local shop said they could delete everything, exhaust work, and custom tune for a very good price. They said they use a company Tunes based in Lousiana.

How different can these tunes be across different companies? I have talked to a few people and none of them come across as software developers or people that understand code or coding. If this is true then I assume that they are using a GUI to select/deselect different features. There must be some level of encryption that keeps each company tune slightly different but they really can't be that much different and still work.

Is there software or an application available that will let a user create a custom tune or a opensource set of tunes that these companies start with to create there own? I have several of the same truck (6 2011-2013 Shuttle Buses) and would not mind using one as a guinea pig while I figure everything out. Ideally, I want the same basic tune for each truck.

Please point me in the right direction.
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Old 03-28-2019, 10:11 AM   #19 (permalink)
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I just had my 15' Silverado 3500HD in for the P21DD code. They replaced the DEF system, couldn't do it rieght then and gave me a rental.


I wasn't happy about that but he advised me that if I took it and waited on the parts to come in and something happend to the DEF system that trashed it then warranty would not cover it. Could be upwards to $3000. I wasn't willing to take that chance.


My truck was there 9 days and totally covered by GM. It was not scratched or anything. I've never had a dealership that didn't protect my vehicle when in they're shop. If they didn't I'd raise hell and never go back.


Just a note, I did not buy my truck new and not even at that dealership. It was from a out of state Hyundai dealership that couldn't get rid of it.
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