Engine Mechanical:
Internal engine components, lubrication, cooling, fuel delivery (non-powertrain control), exhaust.
Engine Performance:
Engine diagnostics, tuning, timing, emissions controls.
Transmission Mechanical:
Automatic transmission overhaul, components, torque converter, cooling.
Transmission Electronic:
Transmission control module (TCM) diagnostics, solenoids, sensors.
Drivetrain:
Transfer case, front and rear axle assemblies, driveshafts, U-joints, propeller shafts.
Suspension:
Front and rear suspension components, springs, shock absorbers, control arms, ball joints, steering linkage.
Brakes:
Front and rear brake system (disc), hydraulic lines, master cylinder, power booster, ABS components and diagnostics.
Steering:
Power steering system, steering column, steering gear/rack, intermediate shaft.
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel lines, evaporative emission control (EVAP).
Exhaust System:
Exhaust manifolds, catalytic converter, mufflers, pipes, hangers.
Cooling System:
Radiator, fan, water pump, thermostat, heater core, coolant lines.
Electrical System Engine:
Engine control module (ECM), sensors, actuators, ignition system, charging system (alternator, battery).
Electrical System Body:
Lighting, wipers, horn, power windows, power locks, mirrors, interior controls.
HVAC:
Heating, ventilation, air conditioning (A/C) system, refrigerant, controls, blower motor.
Body And Frame:
Body panels, doors, windows, interior trim, frame structural information.
Safety Systems:
Airbag system, seatbelt pretensioners, ABS (as related to safety).
Diagnostics:
On-Board Diagnostics (OBD-II) information, diagnostic trouble codes (DTCs), diagnostic procedures.
Maintenance Procedures:
Routine inspections, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt replacement.
Repair Procedures:
Detailed step-by-step repair instructions for all major components and systems, including component removal, disassembly, inspection, repair, reassembly, and installation.
Troubleshooting Guides:
Diagnostic flowcharts and symptom-based troubleshooting for common and complex issues.
Specification Tables:
Torque specifications, clearances, fluid capacities, electrical specifications.
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems.
Diagnostic Tools:
Information on required diagnostic tools and equipment (e.g., scan tools, specialized wrenches).
Rebuild Procedures:
Detailed instructions for rebuilding major components like engines and transmissions.
Depth Of Coverage:
Expert-level diagnostic and repair information suitable for professional technicians and advanced DIYers.
Diagnostic Capability:
Includes advanced diagnostic strategies, sensor data interpretation, and control module programming/relearning procedures.
Component Disassembly:
Detailed breakdown of all major components, including internal parts and their specific service requirements.
Troubleshooting Methodology:
Systematic approach to diagnosing problems, often starting with basic checks and progressing to complex electrical or mechanical diagnostics.
Engine Option 1 Displacement:
6.0L V8 (L76)
Engine Option 1 Configuration:
V8, Overhead Valve (OHV)
Engine Option 1 Horsepower:
300 hp @ 4400 rpm (approximate, may vary by specific model tuning)
Engine Option 1 Torque:
370 lb-ft @ 4000 rpm (approximate, may vary by specific model tuning)
Engine Option 2 Displacement:
6.0L V8 (L96 - FlexFuel capable)
Engine Option 2 Configuration:
V8, Overhead Valve (OHV)
Engine Option 2 Horsepower:
315 hp @ 4400 rpm (approximate, may vary by specific model tuning)
Engine Option 2 Torque:
380 lb-ft @ 4000 rpm (approximate, may vary by specific model tuning)
Fuel Type:
Regular Unleaded Gasoline (87 octane recommended), E85 for L96 FlexFuel.
Fuel Delivery:
Electronic Fuel Injection (EFI) with Sequential Port Injection.
Ignition System:
Distributorless Ignition System (DIS) with Coil-near-plug ignition.
Emission Controls:
Catalytic converter, Oxygen sensors (O2), Exhaust Gas Recirculation (EGR) on some variants.
Oil Change Interval:
Typically every 3,000 to 7,500 miles (5,000 to 12,000 km), or as indicated by the oil life monitoring system. Consult manual for specific viscosity and type.
Air Filter Replacement:
Inspect every 15,000 miles (24,000 km), replace as needed or every 30,000 miles (48,000 km).
Spark Plug Replacement:
Typically around 60,000 to 100,000 miles (96,000 to 160,000 km) for platinum or iridium plugs, depending on specific plug type.
Transmission Fluid Change:
Inspect every 30,000 miles (48,000 km), change fluid and filter typically every 45,000 to 100,000 miles (72,000 to 160,000 km), depending on usage (e.g., towing).
Engine Oil Specification:
API SM or SN, ILSAC GF-4 or GF-5. Viscosity: SAE 5W-30 recommended for most conditions (check owner's manual for exact spec based on temperature).
Transmission Fluid Specification:
Dexron VI Automatic Transmission Fluid.
Coolant Specification:
GM Engine Coolant (Green) or Dex-Cool (Orange) Long Life Antifreeze/Coolant, meeting GM6277M (for green) or GM1825M (for Dex-Cool). Typically a 50/50 mix with distilled water.
Brake Fluid Specification:
DOT 3 Hydraulic Brake Fluid.
Power Steering Fluid Specification:
GM Power Steering Fluid (P/N 12345899 or equivalent).
Common Wear Items:
Ball joints and tie rod ends (especially under heavy use), wheel bearings, front sway bar links.
Engine Issues:
Active Fuel Management (AFM) lifter issues (on some 6.0L variants with displacement on demand), occasional intake manifold gasket leaks.
Transmission Issues:
4L70-E transmission can develop internal seal leaks or solenoid issues, especially when subjected to frequent heavy towing without proper maintenance.
Electrical Issues:
Issues with body control module (BCM), intermittent power to accessories, HVAC blower motor resistor failures.