Basic Information Identification Make: Chevrolet Model: K3500 Year: 1990 Codes Chassis Code: GMT400 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, fleet maintenance personnel Competitive Analysis Advantage Over Print: Instant access, searchability, compatibility across multiple devices, lower cost compared to older printed manuals, convenient online delivery. Key Features Licensing: Officially licensed, derived from OE (Original Equipment) materials by RepairSurge. Accessibility: Accessible via internet connection on PC, laptop, smartphone, or tablet using a web browser. Access Period: 1 year of access included, with discounts for extensions. Manual Details Coverage Areas Manual Coverage Scope: Comprehensive factory-derived service and repair information Page Count Estimated Page Count: Thousands (typical for full service manuals, exact count not specified but implied by depth) Manual Type Manual Type: Service and Repair Manual Language Language: English Format Digital Format: PDF Download (with 1 year access) Manual Coverage Systems Covered Engine Systems: Engine mechanical (block, heads, pistons, crankshaft), lubrication, cooling, fuel delivery, ignition, emissions control, engine performance diagnostics, troubleshooting Drivetrain Systems: Clutch, manual transmission, automatic transmission, transfer case (if applicable to K3500 variants), driveshafts, axles, differentials, wheel hubs, bearings Suspension Steering: Front suspension (independent or solid axle depending on configuration), rear suspension (leaf springs, U-bolts), shock absorbers, springs, steering linkage, power steering system, steering column, wheel alignment Brake Systems: Front disc brakes, rear drum brakes, parking brake system, hydraulic lines, master cylinder, power booster, ABS (if equipped), brake diagnostics and repair Electrical Systems: Battery, charging system (alternator), starting system (starter motor), lighting system, instrument cluster, gauges, body control modules, power accessories, fuse box diagrams, wiring schematics, diagnostic trouble codes (DTCs) HVAC Systems: Heating system, air conditioning system, blower motor, evaporator, condenser, refrigerant handling, controls, ducting Body And Chassis: Frame, body panels, doors, hood, tailgate, bumpers, interior trim, glass, sealants, chassis lubrication Heating Ventilation Air Conditioning HVAC: Comprehensive coverage of HVAC components, operation, diagnostics, and repair, including refrigerant handling and system recharge procedures. Body And Trim: Details on body panel removal and installation, door mechanisms, glass replacement, interior trim panel removal and installation, weatherstripping, and paint repair recommendations. Procedures Included Routine Maintenance: Oil changes, filter replacements (oil, air, fuel), fluid checks and top-offs, tire rotations, spark plug replacement, belt inspection and replacement, battery maintenance Repair Procedures: Detailed step-by-step instructions for component removal, installation, and repair across all major vehicle systems Troubleshooting: Diagnostic charts and procedures for identifying and resolving common and complex problems based on symptoms Component Overhaul: Information on rebuilding engines, transmissions, and other major components Alignment Specifications: Wheel alignment angles, caster, camber, toe settings, and adjustment procedures. Wiring Schematics: Detailed color-coded wiring diagrams for all electrical systems, essential for diagnosing electrical faults. Torque Specifications: Precise torque values for critical fasteners across all vehicle systems, ensuring proper assembly and preventing damage. Technical Depth Diagnostic Capabilities: Advanced diagnostic procedures, including interpretation of sensor data and OBD-I (On-Board Diagnostics) codes relevant to the era. Specification Detail: Precise torque specifications, clearances, fluid capacities, electrical resistance values, and other critical technical data Component Rebuild Instructions: Detailed guides for overhauling engines, transmissions, differentials, and other major mechanical components, including part clearances and assembly sequences. Manual Specifications File Format File Type: PDF Print Quality Digital Quality: High-resolution, clear text and diagrams derived from OE materials Binding Type Digital Binding: N/A (Digital download) Paper Type Digital Paper Type: N/A (Digital download) Engine Specifications Primary Engine Engine Options: Various V8 gasoline engines were common for the K3500 in 1990, including 5.0L (305 ci), 5.7L (350 ci), and potentially a 7.4L (454 ci) depending on specific configurations. Diesel options may also exist. Fuel System Type: Electronic Fuel Injection (EFI) Engine Codes Typical: LB4 (4.3L V6 - unlikely for K3500 heavy duty), L05 (5.0L V8), L03 (5.7L V8), L19 (7.4L V8). Manual will specify for available engines. Performance Horsepower Torque Ranges: Varies significantly by engine. For example, a 5.7L V8 typically produced around 190-210 hp and 300-330 lb-ft of torque. Transmission Standard Transmission Availability: Likely offered with both manual and automatic transmissions. Manual transmissions would typically be 4-speed or 5-speed. Optional Automatic Transmission Options: Common automatic transmissions included the TH400 (3-speed heavy-duty) or the 4L80-E (4-speed overdrive automatic) for heavy-duty applications. Features Transfer Case Options: Four-wheel drive (4WD) models would feature a transfer case, likely manual shift or electronic shift depending on trim. This manual covers both 2WD and 4WD configurations. Axle Ratio Options: Various rear axle ratios available to suit towing and payload requirements, typically ranging from 3.73 to 4.10 or higher for heavy-duty applications. Dimensions Exterior Body Styles: Regular Cab, Extended Cab; Fleetside (standard bed) and Wideside (flared fenders) bed options. Weights Gross Vehicle Weight Rating Gvwr: GVWRs would vary by configuration, but K3500 models are heavy-duty, typically ranging from 8,500 lbs to over 10,000 lbs. Curb Weight: Varies significantly by configuration, but typically ranges from 4,500 lbs to over 5,500 lbs for 4WD models...