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Discussion in '06-07 LLY/LBZ' started by Diesel Dually, May 4, 2008.

  1. Diesel Dually

    Diesel Dually awaiting your return...signed... your friends

    May 3, 2008
    Mile High
    Lets start a FAQ section here.

    Post up the questions, answers TSBs and I will consolidate them all into one FAQ Post...with credit due to the original poster.
  2. saratoga

    saratoga Unpaid Help Staff Member Moderator

    May 3, 2008
    Lithia, FL
    The 06 LLY is mechanically the same as an LBZ. Only difference is the programming.

    The 06 LLY and 06+ LBZ share the same Bosch 32 bit controller.

    All 2006+ trucks have the 6 speed Allison with tap shift on the column.

    Glow plug control module recall/ reflash on early 06 trucks.

    EGR reflash on early 06 trucks.

    I'll think of some others later...
  3. MAX4X4

    MAX4X4 Recruit

    May 4, 2008

    2006 DURAMAX 6600 Turbodiesel to Deliver Class-leading Torque in a More Powerful and Refined Package

    August 1, 2005

    * Engine output for Chevy Silverado HD and GMC Sierra HD increased to 360 horsepower and a class-leading 650 lb-ft of torque
    * Significant updates result in smoother, more refined operation, as well as reduced emissions
    * New glow-plugs reduce start time by as much as 50 percent

    PONTIAC , MICH. – Later this year, GM Powertrain will introduce a new 6.6L DURAMAX 6600 turbodiesel V-8 (RPO LBZ) for the 2006 model year Chevy Silverado HD and GMC Sierra HD with class-leading horsepower – 360 (268 kw) at 3200 rpm and class-leading torque, at 650 lb.-ft. (881 Nm) at 1600 rpm. In addition to the power increase in the Silverado and Sierra, all 2006 DURAMAX engines have been significantly revised to deliver lower emissions and significantly improved quietness and smoothness in every application.

    The 2006 Silverado HD and Sierra HD with the Allison 6-speed automatic transmission will be equipped with a significantly revised 310 horsepower DURAMAX 6600 (LLY) through the third quarter of 2005. It will be replaced in these applications in the fourth quarter of 2005, by the higher output, 360-horsepower DURAMAX (LBZ).

    “The introduction of the DURAMAX diesel in 2001 represented a significant evolution in North American diesel pick-up truck market and propelled GM’s heavy duty diesel pick-up truck market share to over 25 percentage points,†said Charles Freese, GM Powertrain executive director, diesel engineering. “The introduction of the improved, 2006 DURAMAX turbo diesel once again sets a new benchmark to which all others will be measured.â€

    The DURAMAX 6600’s horsepower and torque increase and emissions reduction are enabled by a strengthened iron cylinder block and a lower compression ratio. The lower compression reduces stress on the engine by reducing the peak cylinder firing pressure. This, in turn, allows more fuel to be burned – more fuel means more power – while the lower compression helps reduce NOx emissions. Lower compression also helps reduce noise and vibration, making the all variants of the 6600 a quieter and smoother engine.

    A revised variable-geometry turbocharger also enhances the driving experience of the DURAMAX 6600. Aerodynamic changes to the turbo’s vanes help tailor controlled application of turbo power for seamless and immediate response at full throttle. The turbo, which spins at up to 120,000 rpm, is high-speed-balanced, reducing vibration and resonance – and contributing to the engine’s overall smoothness and refinement. The revised turbo also helps reduce emissions, while maximum boost remains at 20 psi.

    Another new feature of the DURAMAX 6600’s turbo system is the capability of the variable-geometry turbocharger to provide exhaust braking. This function is available on some medium-duty truck models and can replace add-on exhaust brake hardware. With the new system, braking is controlled by a signal from the engine controller and can be activated by the driver.

    The comprehensive list of changes and upgrades to the 2006 DURAMAX 6600 includes:

    * Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased horsepower and torque
    * Upgraded main bearing material increases durability
    * Revised piston design helps lower compression ratio to 16.8:1 from 17.5:1
    * Piston pin bore diameter increased for increased strength
    * Connecting rod “ I †section is thicker for increased strength
    * Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure
    * Maximum injection pressure increased from 23,000 psi to more than 26,000 psi
    * Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors

    * Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions
    * Improved glow plugs heat up faster through an independent controller
    * Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions
    * Air induction system re-tuned to enhance quietness
    * EGR has larger cooler to bring more exhaust into the system
    * First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency and reduce emissions

    The DURAMAX 6600 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.

    In addition to 50 more horsepower and 45 more lb-ft of torque in the Silverado and Sierra, changes to the 2006 DURAMAX 6600 build on a host of improvements introduced for ’05 – improvements that bolstered an already strong foundation. The DURAMAX 6600 features a rigid cast iron cylinder block with induction-hardened cylinder bores; four-bolt, cross-drilled main bearing caps; forged steel, nitride-hardened crankshaft; aluminum pistons with jet-spray oil cooling; aluminum cylinder heads with four valves per cylinder; integrated oil cooler and a charge-cooled turbocharging system. Features, such as easy-access fuel filter and timing gears, reduce maintenance time and effort.

    A new, 32-bit E35 engine controller monitors and adjusts the engine’s operation. Designed exclusively for the DURAMAX diesel engine, the controller helps the injectors precisely meter fuel to the cylinders and can compensate for the variability of the injectors and fuel flow. This sophisticated, more powerful controller also can support up to five injections per cylinder and eliminates the need for an engine-mounted drive unit to fire the fuel injectors.

    The new DURAMAX 6600 in the Silverado and Sierra heavy-duty pick-ups will be available exclusively with the new Allison 1000 6-speed automatic transmission, featuring class-first features, like tap-shift range selection mode.

    In addition to the Chevy Silverado HD and GMC Sierra HD, the DURAMAX 6600 (LLY) is also available at varying power outputs in the Hummer H1 Alpha, Chevy Kodiak and GMC Topkick. For 2006, the DURAMAX is available for the first time in GM’s full-size vans, Chevy Express and GMC Savana, providing power and capabilities matched with quietness and smoothness not found in competitors’ diesel-equipped vans.

    The DURAMAX 6600 was introduced in 2001 and was developed in a partnership with GM Powertrain and Isuzu Motors. Since its introduction, more than 650,000 6.6L DURAMAX diesels have been built and sold.

    The DURAMAX 6600 is assembled at the DMAX facility in Moraine, Ohio , a joint venture between General Motors and Isuzu created specifically to produce diesel engines.

    # # #

    2006 DURAMAX 6600 Specifications (LLY, LBZ)

    Assembly site: Moraine, Ohio

    Applications: Chevy Silverado and GMC Sierra 2500HD, 3500 pickups; Hummer H1, Chevy Express and GMC Savana full-size vans; Chevy and GMC medium-duty trucks

    Type: 90º V-8 charge-cooled turbodiesel
    Displacement (cu in/ cc): 403 / 6599
    Bore x stroke (in x mm): 4.06 x 3.9 / 103 x 99
    Block material: cast iron with induction-hardened cylinder liners
    Cylinder head material:cast aluminum
    Intake manifold:cast aluminum
    Exhaust manifolds:cast nodular iron with steel pipe extension
    Compression ratio: 16.8:1
    Valve configuration:eek:verhead valve, four valves per cylinder
    Valve lifters:Mechanical roller
    Firing order:1 – 2 – 7 – 8 – 4 – 5 – 6 – 3
    Fuel system:direct injection diesel with high-pressure common rail

    Horsepower (hp / kw):
    360 / 268 @ 3200 rpm (2500 HD and 3500 Chevrolet Silverado and GMC Sierra) (LBZ) (Automatic transmission only) (Available beginning 4 th quarter 2005)

    310 / 231 @ 3000 rpm (2500 HD and 3500 Chevrolet Silverado and GMC Sierra) (LLY) (Automatic transmission only) (Available through 3 rd quarter 2005)

    300 / 224 @ 3000 rpm 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY) (manual transmission), Chevrolet Kodiak and GMC TopKick (LLY) and Hummer H1 Alpha (LLY)

    250 / 186 @ 3200 rpm (Chevrolet Express and GMC Savana) (LLY)

    Torque (lb-ft / Nm):

    650 / 881 @ 1600 rpm (2500 HD and 3500 Chevrolet Silverado and GMC Sierra) (LBZ) (Automatic transmission only) (Available beginning 4 th quarter 2005)

    605 / 820 @ 1600 rpm 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY) (Available through 3 rd quarter 2005), Chevrolet Kodiak and GMC TopKick (LLY), (Automatic transmission only)

    520 / 705 @ 1600 rpm 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY) (manual transmission), Chevrolet Kodiak and GMC TopKick (manual transmission) (LLY) and Hummer H1 Alpha (LLY).

    460 / 624 @ 3200 rpm (Chevrolet Express and GMC Savana) (LLY)

    Fuel shut off: 3250 rpm Silverado and Sierra (Heavy Duty), Kodiak and
    TopKick (Medium Duty) and Hummer H1 Alpha. (LLY)

    3450 rpmExpress and Savana (LLY), Silverado and Sierra HD and 3500 (LBZ)

    Crankshaft:forged steel
    Connecting rods:forged steel, stress-fractured
    Additional features: Turbocharger with charge cooling; exhaust braking (medium duty only); heated air intake; GM Oil Life System
  4. MGlickLBZ

    MGlickLBZ Agent Quack Smacker

    May 5, 2008
    South Central, WI
    You might also want to add that the tranny lines leak like sieves in cold weather, stock motor can handle up to 500 HP ok.

    One other thing that might be advantageous is if you were to start a sticky so that all new truck owners that find this site will have a reference point as to what to look out for with their trucks.
  5. GMCYA

    GMCYA Resident Coonass

    Blocker plate
    cat delete= egr codes
    lift pump needed at ???? hp or ???? program level.
    pump rub
    factory air filter good to ???? hp
    tie rod sleeves needed for boosted launch
    pcv reroute
    the great resonator debate
    use motor oil in the t case?
  6. MGlickLBZ

    MGlickLBZ Agent Quack Smacker

    May 5, 2008
    South Central, WI
    PPE air box mod.
  7. MGlickLBZ

    MGlickLBZ Agent Quack Smacker

    May 5, 2008
    South Central, WI
    Hey, we need some mileage threads too.:D
  8. Drillchart

    Drillchart Recruit

    May 9, 2008
    Riiiiggghhtttt, Let me start right here I get 30mph around town;)

    Oh that's right I needed to start a thread, Sorry.

    PDXLBZ New Member

    May 17, 2008
    Belt Squeak

    TSB 05-06-01-018A

    07-06-01-003 ( Belt repalcement)

    TSB 1870272
  10. BigBlueBurban

    BigBlueBurban Umm no...WAIT...yes

    May 7, 2008
    Grand Rapids, Michigan
    Infamous steering column clunk
  11. tysmith

    tysmith ZF Handshaker

    May 10, 2008
    Not ALL '06 Have the Allison...
    I know things...
  12. MattZ71

    MattZ71 Tennessee Diesel's Mod

    May 16, 2008
    KY/TN line
    Thanks for that!
  13. MattZ71

    MattZ71 Tennessee Diesel's Mod

    May 16, 2008
    KY/TN line
    what? please explain more??!
  14. RayMich

    RayMich Active Member

    May 9, 2008
    Mid Michigan
    Some '06 LLY were built with the manual 6-speed ZF-6 transmission. Last year for the manual transmission.

    If you look in his signature, he has a manual tranny in his '06 Duramax.
  15. 12ga diesel

    12ga diesel Jack of all, Master of none

    May 4, 2008
    How about quanities of fluids for referance for future readers.

    Engine Oil: 10 qts.
    Front Diff: 2 qts
    Rear End: 4 qts
    Trans: 10-12 qts -I think (someone help me here, never had to do any work on my own on the trans).
  16. saratoga

    saratoga Unpaid Help Staff Member Moderator

    May 3, 2008
    Lithia, FL
    Let me spell it out... ALL 2006's that happen to have an automatic will have the six speed Allison. :D

    The ZF was only an option on the Collector's Edition known as the 06 LLY, correct?
    Last edited: May 28, 2008
  17. 12ga diesel

    12ga diesel Jack of all, Master of none

    May 4, 2008
    So is mine a Collector's Edition even with the 6 Speed Allison?:smilewinkgrin:
  18. BigDogYJ

    BigDogYJ Recruit

    May 8, 2008
    That does seem strange. I could have sworn the LLY only had the 5 spd. Guess this just goes to show I dont know everything. :smile5:
  19. Twistedtrik

    Twistedtrik I am sofa king we todd it

    May 23, 2008
    Sierra Vista AZ
    Nope, mine is an 06 Lilly with the 6 speed Allison.
  20. North Maine

    North Maine Merchant Mariner

    Jul 9, 2008
    Fort Kent, ME
    do the 06 LLYs have the different badge? or is that just an LBZ thing?

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