Engine Mechanical:
Engine assembly, disassembly, inspection, repair, and rebuilding (including cylinder heads, blocks, pistons, crankshaft, camshafts)
Engine Control System:
Powertrain Control Module (PCM) diagnosis, fuel injection, ignition system, sensors, actuators, emissions control
Fuel System:
Fuel pump, fuel filter, fuel injectors, fuel pressure, evaporative emission control (EVAP)
Emission Control:
Catalytic converter, oxygen sensors, EGR system, PCV system, emissions testing procedures
Cooling System:
Radiator, water pump, thermostat, cooling fan, hoses, coolant specifications
Lubrication System:
Oil pump, oil filter, oil pan, oil specifications, lubrication passages
Ignition Starting Charging:
Spark plugs, ignition coils, starter motor, alternator, battery, wiring
Automatic Transmission:
4L60-E and 4L80-E: Overhaul, diagnosis, fluid service, torque converter, valve body
Manual Transmission:
Not Applicable for most Avalanche models, but coverage for any available manual transmission options is included.
Transfer Case:
NVG 246 (Autotrac II): Operation, maintenance, and repair
Drive Shaft Differential:
Front and rear driveshafts, U-joints, rear axle assembly, differential service, axle ratios
Suspension System:
Front independent suspension (torsion bar), rear multi-leaf spring suspension, shock absorbers, ball joints, control arms
Tire And Wheel:
Tire pressure, wheel alignment, wheel specifications, tire rotation
Brake System:
Front disc brakes, rear disc brakes, ABS system, brake fluid, brake pads, rotors, calipers, lines
Parking Brake:
Parking brake mechanism, adjustment, and repair
Steering System:
Power steering system, steering column, steering gear, tie rods, steering linkage
Climate Control:
Air conditioning system, heating system, HVAC components, refrigerant, blower motor
Supplemental Restraint System:
Airbag system, seat belt pre-tensioners, SRS control module, diagnosis and replacement procedures
Seat Belts:
Seat belt operation, maintenance, and replacement
Engine Immobilizer:
Anti-theft system, key programming, immobilizer module
Cruise Control:
Cruise control system operation, diagnosis, and repair
Wiper Washer System:
Wiper motor, wiper blades, washer pump, washer fluid reservoir
Door Lock System:
Power door locks, central locking, keyless entry system
Meter Audio Visual:
Instrument cluster, gauges, audio system, speakers, entertainment systems
Horn:
Horn operation and circuit diagnosis
Windshield Glass Mirror:
Windshield replacement, glass repair, mirror adjustment and replacement
Instrument Panel:
Instrument panel removal and installation, gauge clusters, warning lights
Seats:
Seat adjustment, seat track repair, seat heater (if equipped)
Engine Hood Door:
Hood latch and release, door hinges, door mechanisms, body panel adjustment
Exterior Interior Trim:
Body panels, bumpers, trim pieces, interior upholstery, dashboard components
Electrical System:
12-volt system, battery, charging system, starting system, fuses, relays, wiring harnesses
Multiplex Can Communication:
Controller Area Network (CAN) bus system, multiplexing, diagnostic trouble codes (DTCs)
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tune-ups, brake service, tire rotation
Diagnosis Troubleshooting:
Step-by-step diagnostic procedures, symptom-based troubleshooting charts, diagnostic trouble code (DTC) interpretation and resolution
Repair Replacement:
Detailed instructions for the removal, repair, and installation of all vehicle components and systems
Rebuilding Overhaul:
Complete procedures for rebuilding engines, transmissions, and other major components
Technical Specifications:
All necessary torque values, clearances, fluid capacities, electrical specifications, and alignment data
Wiring Schematics:
Complete and detailed electrical wiring diagrams for all vehicle systems
Illustrations Diagrams:
Numerous high-quality illustrations, diagrams, and exploded views to clarify procedures
Depth:
Factory-level, including advanced diagnostics, component-level repair, and full vehicle disassembly/reassembly
Oil Change Interval:
Every 3,000-7,500 miles or 6-12 months, depending on driving conditions and oil type used. Consult manual for specific recommendations based on oil quality and usage.
Transmission Fluid Change:
Every 30,000-100,000 miles, depending on towing usage and fluid type. Recommended to check fluid condition regularly.
Coolant Flush:
Every 30,000-50,000 miles or 2-5 years.
Spark Plug Replacement:
100,000 miles (with platinum-tipped spark plugs).
Engine Oil:
SAE 5W-30, API SM or higher (check manual for specific Dexos compliance if applicable for later GM standards)
Engine Coolant:
Dex-Cool (GM Orange Coolant), 50/50 mixture with distilled water
Automatic Transmission Fluid:
Dexron III (or equivalent approved fluid like Dexron VI for updated specs)
Power Steering Fluid:
Dexron III/VI
Common Issue 1:
Rear main seal leaks: A potential issue on higher-mileage Vortec V8 engines.
Common Issue 2:
Transmission cooler line leaks: Can lead to transmission fluid loss and potential overheating.
Common Issue 3:
Water pump bearing failure: Symptoms include coolant leaks and whining noises.
Common Issue 4:
ABS sensor failures: Can lead to ABS warning lights and loss of ABS functionality.
Common Issue 5:
Power steering pump issues: Leaks or noise can indicate a failing pump.