🏷️ Basic Information Identification Make: GMC Model: Sonoma Year: 1993 Codes Chassis Code: GMT400 platform 👋 Introduction Market Position Target Audience: Owners seeking to perform their own maintenance and repairs, independent repair shops, automotive enthusiasts. Competitive Analysis Value Proposition: Provides the exact same technical information used by dealership technicians, offering a significant cost saving over dealership service. Enables DIY repairs and informed decision-making for vehicle maintenance. Key Features Manual Features: Vehicle-specific (not generic), A-Z repair coverage, step-by-step instructions, diagrams, illustrations, wiring schematics, specifications, printable, searchable content. 📋 Manual Details Coverage Areas Engine Coverage: 4.3L V6 (VIN X), 2.8L 4-Cylinder (VIN R) Transmission Coverage: 4-speed automatic (4L60), 5-speed manual (NV3500) Drivetrain Coverage: Rear Wheel Drive (RWD), Four Wheel Drive (4WD) Body Style Coverage: Regular Cab, Extended Cab Trim Level Coverage: All trim levels Page Count Estimated Page Count: Over 1500 pages (estimated based on typical factory manuals for this era) Manual Type Manual Classification: Factory Service Manual / Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, cooling system, lubrication, ignition system, exhaust system, emission controls, automatic transmission (4L60), manual transmission (NV3500), transfer case (for 4WD models), clutch system. Chassis: Suspension system (front and rear), steering system (power steering), brake system (front disc, rear drum), parking brake system, wheels and tires, drive shafts, propeller shafts, differentials, axles. Electrical: Starting and charging system, lighting system, ignition system diagnostics, engine control module (ECM) wiring, instrument panel cluster, audio/visual systems, wipers and washers, power windows, door locks, horn, exterior/interior lighting, accessory circuits, multiplex/CAN communication (if applicable to later 1993 models). Body: Body panels, doors, hood, glass, mirrors, bumpers, interior trim, seats, seat belts, supplemental restraint system (SRS) - if equipped, climate control (air conditioning), heating system. Procedures Included Diagnostic Procedures: Troubleshooting guides for all major systems, diagnostic trouble codes (DTCs) interpretation, component testing procedures, wiring harness diagnostics. Repair Procedures: Step-by-step instructions for disassembly, repair, and reassembly of all mechanical and electrical components. Includes engine overhaul, transmission repair, brake system overhaul, suspension component replacement, electrical component repair, body panel repair. Maintenance Procedures: Scheduled maintenance tasks, fluid changes, filter replacements, lubrication points, belt tensioning, ignition timing adjustment (if applicable), tire rotation. Technical Specifications: Torque specifications for all fasteners, engine specifications (bore, stroke, compression ratio), electrical system specifications, suspension alignment specifications, brake system specifications, wheel and tire specifications, fluid capacities and types. Technical Depth Depth Of Coverage: Factory-level detail for comprehensive repair and maintenance. Covers everything from basic fluid checks to complete engine rebuilds and complex electrical diagnostics. Suitable for professional technicians and advanced DIYers. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: High-resolution, fully printable pages. Ability to enlarge images and diagrams. Binding Type Binding: N/A (Digital PDF - print as needed) Paper Type Paper Quality: N/A (Digital PDF - print on desired paper) ⚙️ Engine Specifications Primary Engine Engine 1 Displacement: 4.3L (262 cu in) Engine 1 Configuration: 90-degree V6 Engine 1 Valvetrain: Overhead Valve (OHV), 2 valves per cylinder Engine 1 Fuel Delivery: Electronic Fuel Injection (EFI) Engine 1 Horsepower: Approximately 160-165 hp (varies slightly by calibration) Engine 1 Torque: Approximately 230-235 lb-ft Secondary Engine Engine 2 Displacement: 2.8L (173 cu in) Engine 2 Configuration: 60-degree V6 Engine 2 Valvetrain: Overhead Valve (OHV), 2 valves per cylinder Engine 2 Fuel Delivery: Electronic Fuel Injection (EFI) Engine 2 Horsepower: Approximately 125 hp Engine 2 Torque: Approximately 150 lb-ft Performance Engine Oil Capacity: 4.5 US quarts (4.3 L) with filter for 4.3L V6; 4.0 US quarts (3.8 L) with filter for 2.8L V6 (Check manual for exact specification) Fuel System Fuel Type: Unleaded gasoline Fuel Octane Rating: 87 octane recommended 🔧 Transmission Standard Standard Transmission Type: 4-speed automatic (4L60) Optional Optional Transmission Type: 5-speed manual (NV3500) Features Transmission Fluid Type: Dexron-III (Automatic transmission, check manual for exact specification) Manual Transmission Fluid Type: GL-4 SAE 75W-90 (Manual transmission, check manual for exact specification) 📐 Dimensions Exterior Wheelbase: 118.0 inches (Regular Cab), 132.5 inches (Extended Cab) Overall Length: 192.1 inches (Regular Cab), 206.9 inches (Extended Cab) Overall Width: 69.6 inches Overall Height: 64.6 inches (approximate, varies by suspension) Weights Curb Weight: Approximately 3500-4200 lbs (varies by configuration) Gross Vehicle Weight Rating: Approximately 5000-5500 lbs (varies by configuration) 🛡️ Safety Features Ratings NHTSA Frontal Impact Rating: Not rated for 1993 model year (NHTSA testing protocols were different) Passive Features Airbags: Driver-side airbag (standard on most models) Seat Belts: Lap and shoulder belts (front), lap belts (rear for extended cab jumps seats) Child Seat Anchors: Not standardly equipped with LATCH system; requires seat belt installation. 💡 Technology Features Infotainment Audio System: AM/FM stereo with cassette player, optional CD player. Speaker configurations vary by trim. Driver Assistance ABS: Anti-lock Braking System (ABS) was optional on some models. Connectivity Cruise Control: Optional on most models. 🔧 Maintenance Service Intervals...