🏷️ Basic Information Identification Make: GMC Model: Sonoma Year: 2004 Product Type: Service and Repair Manual Software Generation Generation Code: Second Generation (Second Facelift) Codes Chassis Code: GMT360 👋 Introduction Market Position Positioning: Premium online service and repair manual software for DIY enthusiasts and professional mechanics alike, offering official, licensed data. Competitive Analysis Comparison To Print: Superior to traditional printed manuals due to instant access, searchability, interactive diagrams, and ease of updating. Key Features Licensing: Officially licensed and derived from OE (Original Equipment) materials. Developer: RepairSurge Cost Savings: Enables significant cost savings compared to professional repair shop labor rates. 📋 Manual Details Coverage Areas Primary Coverage: 2004 GMC Sonoma Additional Coverage Notes: Covers multiple trim levels and engine configurations for the 2004 model year. Page Count Estimated Page Count: Extensive (Software-based, not a fixed page count; equivalent to hundreds of printed pages) Manual Type Type: Official Service and Repair Manual (Software) Language Language: English Format Format: Online Software (Accessible via Web Browser) Access Duration: 1 Year (with option for renewal/discounted extensions) 📖 Manual Coverage Systems Covered Powertrain: Engine (all variants), Fuel System, Cooling System, Exhaust System, Drivetrain (2WD/4WD, Transmissions) Chassis: Suspension (Front & Rear), Steering, Brakes (Front & Rear, ABS), Wheels & Tires Electrical: Starting & Charging System, Ignition System, Lighting System, Instrumentation, Body Electrical, Powertrain Control Module (PCM), Chassis Control Modules, HVAC Controls, Audio System, Safety Systems (Airbags, Seatbelts) Body: Body Structure, Exterior Body Panels, Interior Trim, Doors, Windows, Seats, HVAC System (Components, Refrigerant) Procedures Included Maintenance: Oil Changes, Filter Replacements, Fluid Checks & Top-offs, Tire Rotations, Spark Plug Service, Belt Inspection/Replacement Diagnostics: Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Electrical Schematics, Symptom-Based Diagnosis Repair: Component Removal & Installation (Engine, Transmission, Brakes, Suspension, Steering, HVAC, etc.), Engine Rebuild Procedures, Drivetrain Service, Electrical Component Repair Technical Data: Specifications, Tolerances, Torque Values, Wiring Diagrams, Exploded Views, Diagnostic Flowcharts Technical Depth Depth: Comprehensive (OE-derived, covering diagnostics, repair, and maintenance from basic to advanced) 📊 Manual Specifications File Format Format Details: Web-based software accessible via any modern internet browser and device (PC, laptop, smartphone, tablet) Print Quality Print Option: Pages can be printed directly from the software interface. Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Options: 2.2L L4 (4-cylinder), 3.5L L4 (inline 4-cylinder, VIN G), 4.3L V6 (VIN X) 2.2L Engine Details: GM Ecotec 2.2L OHV 4-cylinder. Power: Approx. 125 hp @ 5200 rpm, Torque: Approx. 135 lb-ft @ 3800 rpm. 3.5L Engine Details: GM 3.5L Vortec HO 3500 LH6 L4 (often marketed as inline-4 due to placement). Power: Approx. 200 hp @ 5600 rpm, Torque: Approx. 225 lb-ft @ 3200 rpm. 4.3L Engine Details: GM 4.3L Vortec 4300 (LV3) OHV V6. Power: Approx. 180-190 hp @ 4400-4600 rpm, Torque: Approx. 245-260 lb-ft @ 2800-3000 rpm. Performance Compression Ratio 4.3L: 9.1:1 Fuel System Injection Type: Multi-port Fuel Injection (MPI) Recommended Fuel: 87 Octane (Regular Unleaded) 🔧 Transmission Standard Manual Transmission: 4-speed Manual (NV1500) on some 2.2L and 4.3L models. Optional Automatic Transmission: 4-speed Automatic (4L60-E) standard on 3.5L and optional on 4.3L models. 5-speed Automatic (4L80-E) on some heavy-duty applications (less common for Sonoma). Features Drivetrain Options: Rear-Wheel Drive (RWD) and Available Four-Wheel Drive (4WD). Transmission Fluid Spec 4L60-E: Dexron-III H or Dexron-VI 📐 Dimensions Exterior Body Styles: Regular Cab, Extended Cab. Bed Lengths: Short Bed (approx. 74 inches), Long Bed (approx. 79 inches). Weights Curb Weight Range: Approx. 3,500 lbs to 4,200 lbs depending on configuration. Towing Capacity: Up to approximately 6,300 lbs (with proper equipment and engine). 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 4/5 Stars (for 2004 models with dual airbags) NHTSA Front Impact Passenger: 4/5 Stars (for 2004 models with dual airbags) IIHS Side Impact: Acceptable (for models tested with side airbags, if equipped) Active Features ABS: Standard Anti-lock Braking System (ABS) on rear wheels; optional on front wheels for 2WD, standard on all wheels for 4WD. Passive Features Airbags: Standard front driver and passenger airbags. Seatbelts: Three-point seat belts with pretensioners. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with CD player, optional premium sound system, and cassette player availability. Display: Basic digital or analog displays for radio presets, clock, and basic vehicle information. Driver Assistance Cruise Control: Available cruise control system. Connectivity Phone Integration: No factory integrated Bluetooth or smartphone connectivity; aftermarket solutions are required. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months, whichever comes first, under normal driving conditions. Severe conditions may require more frequent changes. Tire Rotation Interval: Every 7,500 miles. Air Filter Replacement: Every 30,000 miles or as needed based on inspection. Spark Plug Replacement 4.3L: Platinum tipped plugs typically rated for 100,000 miles. Fluid Specifications Engine Oil Capacity 4.3L: 4.5 quarts (with filter) of SAE 5W-30 synthetic blend or full synthetic oil. Coolant Type: GM-approved...