Engine Mechanical:
Complete coverage of all engine mechanical components and procedures.
Fuel System:
Detailed diagnostics and repair for fuel injectors, pumps, lines, and evaporative emission controls.
Engine Cooling System:
Radiator, thermostat, water pump, fan clutch, and coolant flow diagnostics.
Engine Electrical System:
Ignition system, charging system, starting system, sensors, and actuators.
Airbags System:
SRS (Supplemental Restraint System) component locations, diagnostics, and replacement procedures.
Antiskid Brakes:
ABS (Anti-lock Braking System) hydraulic and electronic diagnostics, sensor testing, and module replacement.
Brakes System:
Front and rear brake caliper, rotor, pad replacement, hydraulic system bleeding, and parking brake adjustments.
Axle Suspension:
Front and rear suspension components, alignment specifications, shock absorber/strut replacement, and wheel bearing service.
Drivetrain:
Driveshaft U-joint replacement, differential service (including Eaton locking differential), and axle shaft inspection.
Transmission Automatic:
Service and repair for the 4L60E, 4L65E, and 4L80E automatic transmissions, including fluid changes and diagnostic procedures.
Steering System:
Power steering system diagnostics, pump and gear replacement, steering column service, and linkage adjustments.
HVAC System:
Air conditioning and heating system service, refrigerant handling, blower motor and actuator diagnostics.
Electrical Components:
Fuse box diagrams, relay locations, power distribution, and lighting system service.
Exhaust System:
Exhaust manifold, catalytic converter, muffler, and pipe inspection and replacement.
Intake System:
Throttle body, mass airflow sensor, and intake manifold diagnostics.
Lubrication System:
Oil pan, oil pump, and oil filter service, oil pressure diagnostics.
Emission System:
PCV system, EVAP system, and oxygen sensor diagnostics for emissions compliance.
Engine Control System:
ECM/PCM operation, diagnostic trouble codes (DTCs), sensor inputs, and actuator outputs.
4Wd Steering Knuckles:
Service and repair of front steering knuckles and related components for 4WD models.
Electronic Steering:
Diagnostic and repair procedures for electronic power steering systems (if equipped).
Electronic Suspension:
Diagnostic and repair procedures for electronic suspension systems (if equipped).
Fuse Relays:
Detailed identification and function of all fuses and relays within the vehicle's electrical system.
Power Brake Booster:
Diagnosis and replacement of brake booster systems.
Power Steering:
Detailed procedures for power steering pump, steering gear, and fluid service.
Steering Column:
Service and repair of steering column components, including tilt mechanisms and ignition switches.
Ring Gear Smaller:
Specifications and service procedures for differential ring gear adjustments.
Starter System:
Diagnosis, testing, and replacement of the starter motor and solenoid.
Computer Relearn:
Procedures for relearning engine control module (ECM) parameters after component replacement.
Disc Brakes:
Detailed procedures for front and rear disc brake service, including caliper, rotor, and pad replacement.
Drive Belt System:
Drive belt routing diagrams, tensioner specifications, and replacement procedures.
Steering Linkage:
Tie rod end, drag link, and idler arm inspection and replacement.
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all vehicle systems, crucial for troubleshooting.
Maintenance:
Scheduled maintenance, fluid checks and changes, filter replacements, and lubrication.
Troubleshooting:
Diagnostic flowcharts and symptom-based troubleshooting for various vehicle issues.
Repair:
Step-by-step repair instructions for virtually all mechanical and electrical components.
Installation:
Procedures for installing replacement parts and accessories.
Depth:
Comprehensive, from basic maintenance to advanced diagnostics and full rebuilds. Suitable for professional mechanics and DIY enthusiasts.
Oil Change Interval:
Typically 3,000-7,500 miles or 6 months, depending on driving conditions and oil type used (refer to owner's manual for exact intervals).
Transmission Fluid Change:
Recommended every 30,000-100,000 miles, depending on usage and fluid type (consult manual for specifics).
Engine Oil Type:
API SJ or higher, SAE 5W-30 recommended for most engines. Consult manual for specific viscosity and quantity.
Transmission Fluid Type:
Dexron III (or Dexron VI compatible) automatic transmission fluid (ATF).
Coolant Type:
GM Delco-Moraine or equivalent ethylene glycol coolant, typically a 50/50 mix with distilled water.
Common Issues List:
Examples include: steering column clunk (intermediate shaft), front hub bearing failure, transmission cooler line leaks (especially with cracked plastic fittings), rear axle seal leaks, catalytic converter failure, and instrument cluster failures (dead pixels).
