Segment:
Off-road, Heavy-duty, Military-derived civilian vehicle
Comparisons:
Designed for extreme off-road capability, contrasting with civilian SUVs in terms of utility, durability, and comfort.
Features:
Robust construction, powerful diesel engine, advanced drivetrain, exceptional off-road articulation and ground clearance.
Powertrain:
Engine, Fuel System, Exhaust System, Transmission, Drivetrain (including axles, differentials, transfer case)
Chassis:
Suspension (front and rear), Steering, Brakes (hydraulic, ABS), Wheels and Tires
Electrical:
Battery, Charging System, Starting System, Lighting, Instrumentation, Powertrain Control Module (PCM), Body Control Module (BCM), HVAC Controls, Audio System, Power Accessories
Body And Frame:
Body panels, doors, windows, interior trim, frame construction, rollover protection structure (ROPS)
Maintenance:
Scheduled maintenance, fluid changes (oil, coolant, brake fluid, transmission fluid, differential fluid), filter replacements, lubrication
Repair:
Component diagnosis, troubleshooting, removal, installation, and adjustment for all major systems
Troubleshooting:
Diagnostic procedures, symptom-based troubleshooting charts, electrical circuit diagrams, fault code interpretation
Depth:
Comprehensive, suitable for both DIY enthusiasts and professional mechanics, covering from basic maintenance to in-depth repairs and diagnostics.
Compatibility:
Requires Adobe PDF Reader for optimal display of images and graphics.
Quality:
Top quality diagrams and easy-to-read text sections.
Binding:
Digital Download (Not Applicable)
Paper Type:
Digital Download (Not Applicable - printable pages recommended)
Description:
6.6L Duramax V8 Turbo Diesel
Engine Codes:
LBZ or LLY (depending on specific production date within the 2006-2007 window)
Horsepower Lbz:
Approx. 360 hp @ 3200 rpm
Torque Lbz:
Approx. 650 lb-ft @ 1600 rpm
Horsepower Lly:
Approx. 310 hp @ 3000 rpm
Torque Lly:
Approx. 590 lb-ft @ 1200 rpm
Type:
Common Rail Direct Injection (CRDI)
Overall Length:
Approx. 201.5 inches (varies slightly by body style)
Overall Width:
Approx. 87.4 inches
Overall Height:
Approx. 77.7 inches (varies by body style)
Curb Weight:
Approx. 6,500 - 7,000 lbs (varies by body style)
Gross Vehicle Weight Rating:
Approx. 10,000 - 10,500 lbs
Towing Capacity:
Approx. 7,000 - 10,000 lbs (varies by configuration)
NHTSA Rating:
Not typically rated by standard consumer safety organizations due to its specialized nature and origins.
ABS:
Anti-lock Braking System (ABS)
Traction Control:
Traction Control System (TCS)
Airbags:
Front airbags (driver and passenger), potentially side airbags depending on specific options.
Rollover Protection:
Integrated Roll Over Protection Structure (ROPS) in the frame and body design.
Audio System:
Basic AM/FM radio with CD player, typically with limited connectivity options (e.g., no Bluetooth or USB as standard).
Features:
Limited by design; focus is on off-road capability. ABS and Traction Control are the primary electronic aids.
Features:
Minimal. Some models might have provisions for CB radios or auxiliary communication systems, reflecting its utility focus.
Engine Oil Change:
Every 5,000 - 7,500 miles or 6 months, with oil analysis recommended for heavy use.
Transmission Fluid Change:
Every 30,000 - 50,000 miles for the Allison 1000, depending on operating conditions. Filter replacement recommended at each service.
Coolant Flush:
Every 50,000 miles or 5 years for the DMAX engine, using approved ELC coolant.
Engine Oil:
API CJ-4 or CK-4, SAE 15W-40 or 5W-40 (synthetic recommended for extreme temperatures). Consult specific manual for exact spec.
Transmission Fluid:
Dexron III/Mercon or Allison TES-295 approved fluid.
Coolant:
Heavy-duty Extended Life Coolant (ELC) - typically orange or red color. Pre-diluted 50/50 mix.
Brake Fluid:
DOT 3 or DOT 4.
Electrical Gremlins:
Corrosion on connectors, intermittent accessory functions due to environmental exposure.
Duramax Injectors:
Potential for injector issues over high mileage, especially if fuel quality is inconsistent.
Air Intake System:
Filter maintenance and housing integrity are critical for protecting the diesel engine from dust and debris.
Origins:
Derived from military vehicles (AM General's High Mobility Multipurpose Wheeled Vehicle - HMMWV), emphasizing ruggedness and off-road prowess.
H1 Generation:
Civilian adaptation of the HMMWV, with later generations incorporating more creature comforts and modern powertrains like the Duramax diesel.
Manufacturer:
AM General (under HUMMER brand, then owned by General Motors)
Production Period:
HUMMER H1 production spanned from 1992 to 2006. The DMAX variant with the Duramax engine was introduced later in the H1's lifecycle.
