Powertrain:
Engine, Fuel Service Specifications, Emission Control, Intake Exhaust Cooling, Lube, Ignition Starting Charging, Auto Transmission, Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension
Chassis:
Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering
Electrical And Electronics:
Control System, Suppl Restraint System, Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter Audio/Visual, Horn, Electrical, Multiplex/Can Communication
Body And Interior:
Air Condition, Windshield/Glass Mirror, Instrument Panel, Seat, Engine Hood/ Door, Exterior & Interior
Powertrain Control Module (PCM):
Engine Control System, Fuel Delivery, Ignition Timing, Emissions Control Systems, Knock Sensor Operation, Throttle Actuation
Transmission Control Module (Tcm):
Automatic Transmission Operation, Shift Logic, Torque Converter Clutch Control, Transmission Fluid Pressure, Solenoid Operation
ABS & Traction Control:
Anti-lock Braking System (ABS) Operation, Wheel Speed Sensors, Hydraulic Modulator, Traction Control System (TCS) Operation, Electronic Stability Control (ESC) / StabiliTrak Functionality
Body Control Module (Bcm):
Lighting Systems, Door Locks, Power Windows, Interior/Exterior Lights, Keyless Entry System, Theft Deterrent System
HVAC System:
Automatic Climate Control, Blower Motor, Blend Doors, Refrigerant System, Heater Core, A/C Compressor, Evaporator
Instrument Cluster & Gauges:
Speedometer, Tachometer, Fuel Gauge, Temperature Gauge, Warning Lights, Driver Information Center (DIC)
Audio & Visual Systems:
Radio Receiver, Amplifier, Speaker Diagnostics, Navigation System Troubleshooting, Antenna Systems
Multiplex/Can Communication:
Network Architecture, Bus Communication Protocols (CAN), Module Intercommunication, Diagnostic Scan Tool Interface
Maintenance:
Scheduled maintenance, fluid checks and changes, filter replacements
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs)
Repair And Rebuild:
Step-by-step repair instructions for all major components and systems, including engine rebuilds, transmission overhauls, brake caliper replacements, etc.
Wiring And Schematics:
Complete wiring diagrams, electrical schematics for all systems, connector views
Component Removal And Installation:
Detailed procedures for removing and installing all major and minor components, including engine parts, suspension components, interior trim, etc.
Diagnostic Trouble Code (DTC) Index:
Comprehensive list of DTCs, their definitions, and associated diagnostic steps.
Electrical Component Testing:
Procedures for testing sensors, actuators, motors, relays, and other electrical components using multimeters and specialized diagnostic tools.
Lubrication Procedures:
Specific lubrication points and recommendations for various chassis and powertrain components.
Suspension Alignment Specifications:
Camber, Caster, Toe, and Thrust Angle specifications for proper wheel alignment.
Brake System Bleeding:
Procedures for bleeding the hydraulic brake system, including ABS modulator bleeding.
Tire Pressure Monitoring System (Tpms) Procedures:
Diagnosis and reset procedures for the TPMS.
Restraint System (Srs) Service:
Procedures for servicing airbags and related components, including safety precautions.
Depth:
Dealer-level technician specifications, including torque values, clearances, diagnostic procedures, and component testing.
Oil Change Interval:
Every 7,500 miles or 12 months, whichever comes first (under normal driving conditions, consult manual for severe conditions).
Tire Rotation:
Every 7,500 miles
Transmission Fluid Change:
Typically around 50,000-100,000 miles, depending on driving conditions. Refer to the manual for specific recommendations.
Engine Oil Type:
SAE 5W-30 Synthetic Motor Oil (GM dexos1 Gen 2 recommended for newer vehicles, but likely GM specification for 2004)
Engine Oil Capacity:
Approximately 6.0 quarts (with filter) for the 4.4L V8
Power Steering Fluid:
GM Power Steering Fluid (or equivalent)
Common Issues Xlr V:
Intermittent electrical gremlins, potential for supercharger belt wear, HVAC system issues, some reports of steering rack leaks.
Engine Performance Notes:
Supercharger clutch and intercooler system diagnostics are critical for optimal performance.