Engine Mechanical:
Engine disassembly, assembly, rebuilding, internal components, timing, seals, gaskets
Engine Control System:
ECU diagnostics, sensors, actuators, fuel injection, ignition timing, emission control systems
Fuel System:
Fuel pump, injectors, lines, pressure testing, fuel tank service, evaporative emission control (EVAP)
Cooling System:
Radiator, water pump, thermostat, hoses, fan operation, coolant specifications
Lubrication System:
Oil pump, oil filter, oil passages, oil change procedures, oil specifications
Ignition Starting Charging:
Battery, alternator, starter motor, ignition coils, spark plugs, wiring
Automatic Transmission:
Internal components, valve body, torque converter, fluid types, solenoids, diagnostic procedures
Manual Transmission:
Clutch, gearbox components, shift linkages, fluid types
Drive Axle Suspension:
CV joints, drive shafts, wheel bearings, control arms, ball joints, struts, shocks, springs
Brakes:
Disc brake calipers, pads, rotors, hydraulic system, ABS diagnostics, parking brake
Steering System:
Steering column, power steering pump, rack and pinion, tie rods
HVAC System:
Air conditioning compressor, refrigerant, evaporator, heater core, blower motor, climate controls
Supplemental Restraint System:
Airbag modules, SRS control unit, seat belt pretensioners, diagnostic codes
Body Exterior Interior:
Doors, windows, locks, glass, mirrors, seats, upholstery, trim panels, hood, trunk
Electrical System:
Wiring harnesses, fuses, relays, lighting, power windows, power locks, horns, wipers, washers
Multiplex Communication:
CAN bus, body control module (BCM) communication, diagnostic protocols
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, inspections
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting, fault code interpretation
Repair:
Step-by-step instructions for all major mechanical and electrical repairs
Diagnostics:
Component testing, circuit diagnosis, use of diagnostic scan tools
Rebuilding:
Engine and transmission rebuilding procedures with detailed specifications
Depth:
Factory-level detail, suitable for professional technicians and advanced DIYers
Diagrams Illustrations:
Abundant, high-quality diagrams, illustrations, and exploded views
Wiring Schematics:
Complete and detailed electrical wiring schematics for all systems
Specifications:
Comprehensive torque specifications, clearances, tolerances, and fluid capacities
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used. Consult manual for specific recommendations.
Air Filter Replacement:
Every 15,000-30,000 miles or as needed based on inspection.
Spark Plug Replacement:
Approx. 100,000 miles for platinum or iridium plugs (check specific plug type).
Coolant Flush:
Every 30,000-50,000 miles or 3-5 years, depending on coolant type.
Engine Oil Spec:
SAE 5W-30 is common for both engines, but verify with the manual. GM dexos1™ Gen 2 or compatible synthetic is recommended for newer standards if applicable.
Transmission Fluid:
Dexron-III (ATF). Check manual for specific PN (e.g., GM P/N 88904754 or equivalent).
Power Steering Fluid:
Dexron-III (ATF).
Coolant Type:
Orange or Pink silicate-free coolant (GM P/N 12346290 or equivalent).
Engine Mounts:
Can deteriorate, leading to vibration.
Intake Manifold Gaskets:
Common leak point on 3.4L V6 (L36) leading to coolant/oil leaks and overheating.
Transmission Issues:
Intermittent shifting problems or failure on automatic transmissions can occur with age and mileage.
Window Regulators:
Plastic components can break, causing power or manual windows to fail.
Wheel Bearings:
Can wear out, producing humming or grinding noises.
