🏷️ Basic Information Identification Make: Chevrolet Model: K2500 Year: 1991 👋 Introduction Market Position Market Position: Targeted at DIY enthusiasts and independent repair shops seeking authoritative repair data for the 1991 Chevrolet K2500. Target Audience: DIY mechanics, truck owners, mechanics specializing in classic or older GM trucks. Competitive Analysis Competitive Analysis: Offers a modern, accessible alternative to older, out-of-print physical manuals, providing licensed OE information. Key Features Key Features: Licensed OE materials, instant online access, compatibility with multiple devices, detailed repair procedures, diagnostic information. Accessibility And Convenience: Instant download provides immediate access to repair information, eliminating the wait for physical delivery and the inconvenience of carrying bulky manuals. 📋 Manual Details Coverage Areas Coverage Areas: Full Service and Repair for 1991 Chevrolet K2500 Repair Scope: Covers everything from minor adjustments and fluid changes to complete drivetrain rebuilds and body panel repairs. Page Count Page Count: Comprehensive (exact page count not specified, but implied to be extensive) Manual Type Manual Type: Service and Repair Manual Software Manual Source Licensing: Officially licensed, derived from OE (Original Equipment) materials by RepairSurge. Language Language: English Format Format: PDF Download (Software) Device Compatibility: Compatible with PC, laptop, smartphone, or tablet with an internet connection and web browser. 📖 Manual Coverage Systems Covered Systems Covered: Engine, Drivetrain, Transmission, Suspension, Steering, Brakes, Electrical System, HVAC (Heat, Air Conditioning), Bodywork, Wiring Diagrams, Diagnostic Procedures Electrical System Coverage: Detailed wiring diagrams for all circuits, fuse/relay locations, diagnostic procedures for lighting, charging system, starting system, accessories, and instrumentation. HVAC System Coverage: Component identification, operation, troubleshooting of heating and air conditioning systems, refrigerant handling (safely), blower motor, A/C compressor, heater core, and evaporator service. Drivetrain Coverage: Front and rear axle service, propeller shaft inspection/replacement, U-joint service, four-wheel-drive system operation and repair. Procedures Included Procedures Included: Routine Maintenance, Troubleshooting, Major Repairs, Component Replacement, Engine Rebuilding, Brake System Overhaul, Suspension and Steering Alignment, Electrical System Diagnostics and Repair, HVAC System Servicing Engine Rebuilding Procedures: Comprehensive steps for cylinder head removal/installation, piston and connecting rod service, crankshaft main bearing replacement, camshaft and lifter service, timing gear/chain replacement, and full engine assembly. Brake System Repair Procedures: Front disc brake pad replacement, caliper service, rotor replacement, rear drum brake shoe replacement, wheel cylinder service, brake line inspection and replacement, bleeding the brake system. Technical Depth Technical Depth: OE-level technical information, diagnostic procedures, repair steps, specifications, torque values, wiring diagrams, component locations Diagnostic Trouble Codes Coverage: Information on diagnostic trouble codes (if applicable to this era's OBDI system) and systematic troubleshooting trees for common drivability issues. Engine Torque Specifications Coverage: Detailed torque specifications for cylinder head bolts, main bearing caps, connecting rod bolts, intake and exhaust manifolds, and all other critical engine components. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Digital (High Resolution for onscreen viewing and printing) Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Primary Engine Offered 1991 K2500: 454 cubic inch (7.4L) V8 OHV Engine Options Engine Options 1991 K2500: Also available with 350 cubic inch (5.7L) V8 OHV and 4.3L V6 OHV engines depending on specific K2500 configuration. Performance 454 Ci V8 Horsepower 1991 K2500: Approx. 230 hp @ 4000 rpm 454 Ci V8 Torque 1991 K2500: Approx. 380 lb-ft @ 2000 rpm Fuel System Fuel System Type 1991 K2500: Electronic Fuel Injection (EFI) Engine Codes Engine Code 454 Ci V8: L19 (for 454 CID V8) Engine Code 350 Ci V8: L05 (for 350 CID V8) Engine Code 4.3L V6: LB4 (for 4.3L V6) 🔧 Transmission Standard Transmission Standard Transmission 1991 K2500: 4-speed manual transmission (New Process NP435 or similar) or 4-speed automatic transmission (4L80-E) Optional Transmission Optional Transmission 1991 K2500: 3-speed Turbo-Hydramatic TH400 automatic transmission (less common on K2500 models) Features Transmission Features 1991 K2500: Heavy-duty components suited for towing and hauling, manual includes detailed overhaul and diagnostic procedures for both manual and automatic transmissions. Transmission Codes Automatic Transmission Code 4L80E: 4L80-E Manual Transmission Code Np435: NP435 (New Process 435) 📐 Dimensions Exterior Wheelbase Exterior Wheelbase 1991 K2500: Varies by configuration, common options include 131.5 inches (standard) and 155.5 inches (long bed). Exterior Length Exterior Length 1991 K2500: Varies by configuration (standard cab, long/short bed). Weights Gvwr Weights Gvwr 1991 K2500: Typically ranges from 7,200 lbs to 8,600 lbs, depending on configuration and options. Weights Curb Weights Curb 1991 K2500: Varies significantly based on engine, cab style, and drivetrain, generally around 5,000-6,000 lbs. Exterior Body Styles Body Styles 1991 K2500: Regular Cab, Extended Cab (less common) Exterior Bed Lengths Bed Lengths 1991 K2500: Short Bed (approx. 6.5 ft), Long Bed (approx. 8 ft) 🛡️ Safety Features Ratings Safety Ratings 1991 K2500: NHTSA ratings from the era; detailed crash test data is typically found in specific automotive safety publications but covered in service manuals for component safety....