🏷️ Basic Information Identification Make: GMC Model: G3500 Year: 1993 Codes Chassis Code: GMT400 (for C/K pickups, but G-series vans share significant components and development lineage from this platform era) 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, fleet maintenance personnel Competitive Analysis Competitor Manuals: Haynes, Chilton (often less detailed, less OE-derived) Key Features Feature 1: Officially Licensed OE Material Feature 2: Instant Online Access, Accessible on Multiple Devices Feature 3: Comprehensive Coverage of All Major Systems Feature 4: Detailed Wiring Diagrams and Troubleshooting Guides Feature 5: Cost-effective alternative to professional repair 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Troubleshooting, Diagnostics, Electrical Schematics, Component Overhaul Page Count Estimated Pages: 1000+ Manual Type Type: Digital Service and Repair Manual Software Language Language: English Format Format: Online Access (Web Browser Compatible) Access Duration: 1 Year (with discounts for extension) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block, pistons, crankshaft, camshaft, valve train, timing, lubrication system, cooling system, intake and exhaust manifolds Fuel System: Fuel tank, pump, lines, injectors, throttle body, fuel pressure regulator, evaporative emission control (EVAP) Ignition System: Distributor, coil, spark plugs, ignition wires, ignition control module (ICM) Transmission Manual: Manual transmission overhaul, clutch system, shifter linkages, driveshaft Transmission Automatic: Automatic transmission overhaul, torque converter, shift controls, cooler lines Drivetrain: Rear axle, differential, axleshafts, U-joints, wheel bearings Brakes: Front and rear disc/drum brakes, parking brake, hydraulic system, ABS (if equipped), brake lines, master cylinder, calipers, wheel cylinders Suspension: Front independent suspension (torsion bar or coil spring), rear leaf springs, shock absorbers, control arms, ball joints, bushings, sway bars Steering: Power steering system, steering gear/rack and pinion, steering column, tie rods, power steering pump and lines Electrical System: Battery, charging system (alternator), starting system (starter motor), fuses, relays, wiring diagrams for all circuits Lighting: Headlights, taillights, interior lights, turn signals, hazard lights, wiring and bulb replacement HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system components, blower motor, heater core, evaporator core, refrigerant system, controls Body And Frame: Body panels, doors, hood, tailgate, interior trim, chassis components, structural repairs Diagnostics And Troubleshooting: Diagnostic trouble codes (DTCs), symptom-based troubleshooting charts, component testing procedures Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and top-offs, lubrication, tire rotation, tune-ups Repair: Detailed step-by-step repair procedures for all major components and systems Rebuilds: Complete overhaul instructions for engines, transmissions, differentials, and other major mechanical assemblies Adjustments: Valve adjustments, brake adjustments, clutch adjustments, steering system adjustments Diagnostics: Troubleshooting guides, fault finding procedures, component testing, use of diagnostic equipment Wiring Schematics: Comprehensive electrical diagrams for all vehicle systems, including engine, chassis, body, and accessories Technical Depth Depth: Factory-level diagnostic and repair procedures Diagnostics Level: Advanced, including diagnostic trouble codes (DTCs) and component-specific testing Rebuild Level: Complete engine and transmission rebuild procedures with specifications 📊 Manual Specifications File Format File Type: Proprietary Software (Web-based) Print Quality Print Quality: N/A (Digital Format) Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code 1: L35 (4.3L V6 Vortec) Displacement 1: 4.3 Liters (262 cu in) Configuration 1: V6, Overhead Valves (OHV) Horsepower 1: Approx. 160-195 hp (depending on specific tune and emissions) Torque 1: Approx. 230-260 lb-ft (depending on specific tune and emissions) Optional Engine Engine Code 2: LP4 (5.0L V8 Small Block) Displacement 2: 5.0 Liters (305 cu in) Configuration 2: V8, Overhead Valves (OHV) Horsepower 2: Approx. 175-200 hp Torque 2: Approx. 250-275 lb-ft Engine Code 3: L30 (5.7L V8 Small Block - rarer for G3500 in this year) Displacement 3: 5.7 Liters (350 cu in) Configuration 3: V8, Overhead Valves (OHV) Horsepower 3: Approx. 200-220 hp Torque 3: Approx. 285-310 lb-ft Fuel System Fuel Delivery 1: Throttle Body Injection (TBI) for 4.3L V6 and 5.0L V8 Fuel Delivery 2: Multi-Port Fuel Injection (MPFI) possible on later models or specific applications, but TBI was prevalent in '93 Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Type 1: 4-speed Automatic (TH400/4L80E predecessor depending on GVWR/engine) Optional Type 2: 4-speed Manual (NV4500 or earlier NVG options possible but less common for G3500) Features Overdrive: Overdrive gear available on automatic transmissions Transmission Fluid Spec: Dexron-III (or equivalent) for automatic transmissions 📐 Dimensions Exterior Wheelbase Options: Multiple configurations available, common around 130-155 inches depending on van length Body Styles: Panel Van, Passenger Van, Chassis Cab Weights Gvwr Options: Typically starting around 8,600 lbs and going up to 10,500 lbs or higher for G3500 designation Curb Weight: Varies significantly based on configuration, approximately 4,500 - 5,500 lbs 🛡️ Safety Features Ratings NHTSA Ratings: Not explicitly available for this model year in digital format comparable to modern standards; emphasis on structural integrity for commercial use Active Features ABS: Anti-lock Braking System (ABS) available as an option, primarily on rear wheels for this era Passive...