🏷️ Basic Information Identification Make: GMC Model: Sonoma Year: 1994 Product Type: Service and Repair Manual Software Software Vendor: RepairSurge Licensing: Officially Licensed, OE Material Derived Codes Chassis Code: GMT400 (Second Generation) 👋 Introduction Market Position Target Audience: DIYers, independent repair shops, enthusiasts Competitive Analysis Vs Print Manuals: More convenient, faster access, potentially more up-to-date digital presentation than older printed versions Key Features Accessibility: Instant online access from various devices with internet connection Content Source: Licensed OE (Original Equipment) materials Value Proposition Cost Savings: Enables DIY repairs to save money on labor costs 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair information Page Count Estimated Digital Pages: Likely extensive, equivalent to a full factory service manual (thousands of pages, depending on content depth and digital formatting) Manual Type Type: Digital Service and Repair Manual Language Language: English Format Format: Online Software/Web-Based Access Access Duration: 1 Year (with discounts for renewal) Device Compatibility: PC, Laptop, Smartphone, Tablet (via web browser) 📖 Manual Coverage Systems Covered Powertrain: Engine (mechanical, fuel, ignition, cooling, lubrication), Transmission (manual & automatic), Drivetrain (driveshafts, differentials, axles) Chassis: Suspension (front & rear), Steering, Brakes (hydraulic, ABS if applicable), Wheels & Tires Body And Electrical: Body (exterior, interior trim, doors, windows), Electrical System (wiring diagrams, lighting, accessories), HVAC (heating, ventilation, air conditioning) Procedures Included Diagnostics: Troubleshooting guides, diagnostic procedures, fault code interpretation Maintenance: Scheduled maintenance, fluid changes, filter replacements, tune-ups Repair Rebuild: Component removal and installation, disassembly and reassembly, major component overhaul Technical Depth Depth: Detailed step-by-step instructions, torque specifications, special tool requirements, diagnostic flowcharts 📊 Manual Specifications File Format Digital Format: Web-based access, no traditional file download specified (implies online viewing) Print Quality Printability: Likely printable sections, but primarily designed for digital viewing Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Options: 2.8L V6, 4.3L V6 (LG5/LF6), 5.0L V8 (L30/LB4 - less common in Sonoma, more in full-size trucks, but possible) 4.3L V6 Displacement: 262 cubic inches (4.3 liters) 4.3L V6 Configuration: 90-degree Overhead Valve (OHV) V6 4.3L V6 Horsepower Est: Approx. 160-165 hp (depending on specific application and tune) 4.3L V6 Torque Est: Approx. 230-235 lb-ft (depending on specific application and tune) Fuel System Fuel Delivery: Throttle Body Injection (TBI) or Central Sequential Fuel Injection (CSFI/MPFI) depending on engine variant and emission standards Fuel Type: Unleaded Gasoline Ignition System Ignition Type: Distributorless Ignition System (DIS) or traditional distributor-based system 🔧 Transmission Standard Standard Transmission: 5-Speed Manual (e.g., NV3500) Optional Optional Transmission: 4-Speed Automatic (e.g., 4L60-E) Features Transmission Fluid Spec: Dexron-III (for automatic transmission) 📐 Dimensions Exterior Body Styles: Regular Cab, Extended Cab Wheelbase Options: Short Bed (approx. 111.3 in), Long Bed (approx. 122.9 in) Weights Curb Weight Est: 3500 - 4000 lbs (depending on configuration) Towing Capacity Est: Up to 6,000+ lbs (depending on engine, axle ratio, and configuration) 🛡️ Safety Features Ratings Crash Test Ratings: NHTSA ratings for this era typically vary. Information would be detailed in the manual if available. Active Features Braking System: Front Disc Brakes, Rear Drum Brakes. Anti-lock Braking System (ABS) available on some models. Passive Features Restraints: Seat belts (lap and shoulder belts) 💡 Technology Features Infotainment Audio System: Factory AM/FM/Cassette stereo, optional CD player. Driver Assistance ABS: Optional Anti-lock Braking System (ABS) for rear wheels or four-wheel ABS on certain trims/configurations. Connectivity Connectivity Features: Basic factory wiring for optional accessories, no integrated connectivity features like Bluetooth or USB. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 3,000-5,000 miles or 3-6 months, consult manual for exact OE recommendation. Engine Air Filter: Replace as needed, typically every 12,000-15,000 miles or based on inspection. Spark Plugs: Intervals vary by plug type, but typically 30,000-100,000 miles for modern plugs (check manual for specific plug type used). Fluid Specifications Engine Oil Spec 4.3L: API Service SG or SH, SAE 5W-30 (check manual for viscosity based on temperature range) Coolant Type: GM 'Green' Conventional Coolant (Ethylene Glycol based) Brake Fluid Type: DOT 3 Power Steering Fluid Type: GM Power Steering Fluid or Dexron-III/VI Known Issues Common Sonoma Issues: Rear main seal leaks, intake manifold gasket leaks (especially on V6 engines), ignition module failures, dashboard crack issues, suspension wear (ball joints, tie rods). Tbi Issues: Clogged throttle body, fuel injector issues for TBI systems. 📚 Vehicle History Brand Heritage Gmc Legacy: GMC (General Motors Truck Company) has a long history of producing trucks and commercial vehicles, emphasizing durability and capability. Model Evolution Sonoma Introduction: The Sonoma nameplate was introduced by GMC in 1982, replacing the GMC S-15 pickup. The 1994 model falls within the second generation (GMT400 platform, 1988-1997 for S-10/Sonoma). Production Platform: GMT400, shared with Chevrolet S-10. 🏆 Awards & Recognition Recognitions Truck Of The Year: While the Sonoma itself may not have specific 'Truck of the Year' awards for 1994, the GMT400 platform trucks...