My VIN is: 1GCHK23256F101479

I'm confused. Is it a 2005 LLY or a 2006 LLY? It's a 2005 -> according to this page: http://www.kennedydiesel.com/categoryresults.cfm?Category=4

I'm not sure though. It's build date is 07/19/2005 the sticker said 2006 model and I had to do the 06522 glow-plug recall.

Thanks for your help.

I don't think that page is correct..I've never seen anyone with a 3 for the eighth digit. All LLY's are a 2.

You have an 06 LLY.

there are only 3 options for the eigth digit.... Lb7(1), LLy(2), and LBZ(D)

My VIN is: 1GCHK23256F101479

I'm confused. Is it a 2005 LLY or a 2006 LLY? It's a 2005 -> according to this page: http://www.kennedydiesel.com/categoryresults.cfm?Category=4

I'm not sure though. It's build date is 07/19/2005 the sticker said 2006 model and I had to do the 06522 glow-plug recall.

Thanks for your help.

If it was built on 7-19-05 it is an '06 model. Do you have the 6 speed allison?

ALL 06 LLYs are very different from the 04.5-06 LLY. The 06 LLY is exactly like an LBZ, except for different programing.

If it was built on 7-19-05 it is an '06 model. Do you have the 6 speed allison?

Yes, with the manual mode on the column as well. I love it.

You have an 06 LLY.


Thanks.

ALL 06 LLYs are very different from the 04.5-06 LLY. The 06 LLY is exactly like an LBZ, except for different programing.

I have an 06 with the LLY in it. It's build date is 9/15/05
Are you saying I can upgrade the programing and have the same as the LBZ? :confused:

The 6F is the give away! It is a 2006. All new model years since around 1996 have been built after the 2 week shut-down in July!! The 6 is the model year & the F means it was built at the Flint Truck Asmy. Plant. It (F) also means it is a crew cab D/A - only place that they are built. Howard

I have an 06 with the LLY in it. It's build date is 9/15/05
Are you saying I can upgrade the programing and have the same as the LBZ? :confused:Technically yes, but finding a dealership to do it would be extremely difficult. Probably more like impossible.

Technically yes, but finding a dealership to do it would be extremely difficult. Probably more like impossible.

Ok, Not sure why it would be so Difficult :confused:

Does anyone know exactely what is done in reprograming?

Really, just wondering, I guess I could just put on a programer type box and accomplish the same results?
I don't feel the need for more power.
Like I said, Just curious :o:

ROCKRIG, here you go with an explanation! 1GCHK23256F101479
1. = U.S. Built. #2 = Canadian Built. #3 = Mexican Built.
G. = General Motors
C. = Chevy Truck (T) would be a GMC.
H. = G.V.W. of 9-10,ooo Lbs. = 3/4 Ton (E) = 6-7,000 Lbs. = 1/2 Ton
K. = Conventional cab (4X4) (C) = Same BUT 4X2
2. = 3/4 Ton. (1) = 1/2 Ton & (3) = 1-Ton
3. = 4 Door Cab. (4) = 2 Door Cab & (9) = Extended Cab
2. = LLY 6.6 Duramax Engine (G) = 8.1 Gas & (U) = 6.0 Gas
5. = A check Digit
6. = Model Year of vehicle.
F. = Flint = Where vehicle was built. (E) = Pontiac East
101479 = Production Sequence Number.
BRIANO, sorry about the counting, BUT the eighth # is a 2, RIGHT?

Ok, Not sure why it would be so Difficult :confused:

Does anyone know exactely what is done in reprograming?

Really, just wondering, I guess I could just put on a programer type box and accomplish the same results?
I don't feel the need for more power.
Like I said, Just curious :o:I think it has something to do with how tech 2 works. It reads your VIN and allows you to enter programming appropriate for your VIN. Since the LBZ programming isn't appropriate for your VIN they would have to do some trickery with the tech 2. I think you have to reprogram a few other things besides the ECM. That and the fact that a dealership probably doesn't care that the engine is the same are why I think you would have a hard time finding a dealership to do the switch.
ROCKRIG, here you go with an explanation! 1GCHK23256F101479
1. = U.S. Built. #2 = Canadian Built. #3 = Mexican Built.
G. = General Motors
C. = Chevy Truck (T) would be a GMC.
H. = G.V.W. of 9-10,ooo Lbs. = 3/4 Ton (E) = 6-7,000 Lbs. = 1/2 Ton
K. = Conventional cab (4X4) (C) = Same BUT 4X2
2. = 3/4 Ton. (1) = 1/2 Ton & (3) = 1-Ton
3. = 4 Door Cab. (4) = 2 Door Cab & (9) = Extended Cab
2. = LLY 6.6 Duramax Engine (G) = 8.1 Gas & (U) = 6.0 Gas
5. = A check Digit
6. = Model Year of vehicle.
F. = Flint = Where vehicle was built. (E) = Pontiac East
101479 = Production Sequence Number.
BRIANO, sorry about the counting, BUT the eighth # is a 2, RIGHT?I think BRIANO was referring to the chart from Kennedy's website.

This one.

01-04 LB7 is a 1
04.5-05 LLY is a 2
06 LLY is a 3
06 LBZ is a D

Thanks for the reply
I am still learning and asking alot of questions
In any case, I really like my LLY compared to my LB7
Seems to have a lot more towing power and the 6 speed is really great!!!

The LBZ is more than a programming upgrade.

The LBZ is more than a programming upgrade.

um no its not, the 04.5-05 LLY to LBZ is very different, but the 06 LLY and LBZ are exactly alike besides programming

Wow. I've been on this forum for only a few weeks and I've already learn so much about my truck.

Howard, thanks for the detailed explanation of my VIN.

I have an 06 with the LLY in it. It's build date is 9/15/05
Are you saying I can upgrade the programing and have the same as the LBZ? :confused:

Cannot get a straight answer on this question, but I believe some programmers do and some claim they do not. Superchips FlashPaq claims theirs does BTW. Looking at their webpage with dyno tests on one LBZ and one 06 LLY, it appears the LLY actually outperformed the LBZ slightly on the dyno, but differences in vehicles could easily explain this.

Source: GM Media - FOR RELEASE: 2005-08-01
The comprehensive list of changes and upgrades to the 2006 Duramax 6600 ( LBZ ) includes:
<LI class=MsoNormal>Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased horsepower and torque. <LI class=MsoNormal>Upgraded main bearing material increases durability. <LI class=MsoNormal>Revised piston design helps lower compression ratio to 16.8:1 from 17.5:1. <LI class=MsoNormal>Piston pin bore diameter increased for increased strength. <LI class=MsoNormal>Connecting rod " I " section is thicker for increased strength. <LI class=MsoNormal>Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure. <LI class=MsoNormal>Maximum injection pressure increased from 23,000 psi to more than 26,000 psi. <LI class=MsoNormal>Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors. <LI class=MsoNormal>Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions. <LI class=MsoNormal>Improved glow plugs heat up faster through an independent controller. <LI class=MsoNormal>Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions. <LI class=MsoNormal>Air induction system re-tuned to enhance quietness. <LI class=MsoNormal>EGR has larger cooler to bring more exhaust into the system. <LI class=MsoNormal>First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency and reduce emissions.
The Duramax LBZ also has a new intake air heater to reduce smoke and emissions during cold or light-load driving. The system features a 1000-watt grid heater located in the air intake duct, which is triggered automatically by the engine controller. It heats up the incoming air to speed warm-up of the engine.

um no its not, the 04.5-05 LLY to LBZ is very different, but the 06 LLY and LBZ are exactly alike besides programming

Bobo is correct.

there is a sticky at the top of this section 06 LLY and LBZ Differences (http://www.dieselplace.com/forum/showthread.php?t=67521)

if it was just programming then 1 million 06LLy guys would be heading to the dealers right now for 60 more ponies!

That looks like several differences between the two motors. If they could have just upgrade the programming they wouldn't have given it a new RPO code.

Bobo is correct.

there is a sticky at the top of this section 06 LLY and LBZ Differences (http://www.dieselplace.com/forum/showthread.php?t=67521)

if it was just programming then 1 million 06LLy guys would be heading to the dealers right now for 60 more ponies!So what exactly is different.

Oh, I guess I'll add that a member who worked as a tech at a dealership stated he did indeed put LBZ programming into an 06 LLY, but it was a major PITA.

The sticky list of differences just confused me.

I'm pretty sure (based on what I've read on this site) that both the 06 LLY and LBZ have the same computer system and block. The block and computer from the older LLY are different, correct?

Does my 06LLY use the old LLY injectors, turbo, cyl. heads, etc or where these components specifically designed/tested/built for the 6 month production run of 06LLYs ?

What are the difference between the older LLYs and the 06LLYs?

If the LBZ and 06LLY glow plugs are different, why did I have the same glow plug recall as the LBZs?

I'm just getting more confused, the more I think about it.

:crickets:

Sorry for my impatience.... I hope someone can answer my questions :)

Yes, everything except the programming is the same. There is confusion because the list printed says LBZ at the beginning, but I know for a fact that most of the thing (items I can see such as intake, intake heater, computer, etc) on the list on my truck are the same as an LBZ. There are also people who have said the 06 LLY and LBZ have the same part numbers on engine parts such as the rods, pistons and block.

Bobo is correct.

there is a sticky at the top of this section 06 LLY and LBZ Differences (http://www.dieselplace.com/forum/showthread.php?t=67521)

if it was just programming then 1 million 06LLy guys would be heading to the dealers right now for 60 more ponies!

I am tired of people pointing to that, as that is not the difference of the 06 LLY vs the 06 LBZ, that list is the differences between the previous generation "04.5-05" to 06

also, from what I understand, it is not as simple as just using a techII to upgrade the programming, as the vins have to match for the flashes, and dealers aren't willing to do it

I was also confused about which LLY motor I had and orderd the wrong blocker/fingerstick, but now all is cleared up

I have an 06 with the LLY in it. It's build date is 9/15/05
Are you saying I can upgrade the programing and have the same as the LBZ? :confused:

So, In the early 06's with LLY's you can program them the same as an Lb7 or an LLY. I am looking at the Edge Juice. Thanks Guys!

Paul

Sorry I meant LBZ. Any ideas?

Edge is not out yet for the 06.

they are in Beta test so soon.