🏷️ Basic Information Identification Make: GMC Model: Jimmy Year: 1986 Codes Model Code: K5/K1500 Blazer (though the product refers to Jimmy, GMC often used Blazer nomenclature for 4WD equivalents) Generation Generation: Third Generation (1973-1991) - Specifically the updated styling and mechanicals of the later half of this generation. 👋 Introduction Market Position Market Position: The 1986 GMC Jimmy was a popular full-size sport utility vehicle (SUV), competing with models like the Chevrolet K5 Blazer, Ford Bronco, and Dodge Ramcharger. It appealed to buyers seeking ruggedness, off-road capability, and utility for towing and cargo. This manual positions itself as the definitive resource for owners and independent repair shops aiming for dealership-level repair accuracy. Target Audience: Owners of 1986 GMC Jimmys, independent repair shops, automotive technicians, and restoration enthusiasts looking for authentic, factory-quality repair information. Competitive Analysis Competitive Analysis: In 1986, the SUV market was maturing, with the Jimmy offering a blend of truck-based utility and passenger vehicle comfort. Competitors focused on similar attributes, but GMC's reputation for robust powertrains and comfortable interiors gave it a strong standing. This manual is crucial for maintaining the integrity and performance of these vehicles. Key Features Key Features: Vehicle-specific, factory-authorized content, comprehensive A-Z coverage, detailed step-by-step instructions, high-quality diagrams and illustrations, wiring schematics, digital format for easy access and printing, compatibility with various operating systems. 📋 Manual Details Coverage Areas Coverage Areas: All models & all repairs A-Z, including maintenance, engine, control systems, mechanical components, fuel service, emissions, cooling, lubrication, ignition, starting, charging, automatic transmissions, clutches, manual transmissions, transfer cases, propeller shafts, drive shafts, differentials, axles, suspension, tires, wheels, brake control, brakes, parking brakes, steering columns, power steering, air conditioning, supplemental restraint systems, seat belts, engine immobilizers, cruise control, wipers, washers, door locks, meters, audio/visual systems, horns, windshields, glass, mirrors, instrument panels, seats, engine hoods, doors, exterior and interior components, electrical systems, multiplex/CAN communication. Page Count Page Count: Not explicitly stated in product information, but implied to be comprehensive covering all A-Z repairs. Manual Type Manual Type: Factory Service and Repair Manual Language Language: English Format Format: Digital (PDF), Printable Compatible Os Compatible Os: Windows Vista (32 and 64-bit), XP, ME, 98, NT, 2000, and Mac compatible. File Format Accessibility: Easy to use, searchable PDF allows users to print only necessary pages and blow up images for detail. 📖 Manual Coverage Systems Covered Systems Covered: Comprehensive coverage of all major vehicle systems including powertrain (engine, transmission, drivetrain), chassis (suspension, steering, brakes), electrical system (starting, charging, ignition, accessories, lighting), HVAC, body and interior. Specific mention of advanced electronic systems for the era like cruise control and potential early multiplex communication systems. Emission Control Systems: Detailed information on emission control components such as catalytic converters, EGR valves, and PCV systems, along with diagnostic and repair procedures for meeting emissions standards of the era. Procedures Included Procedures Included: Step-by-step repair instructions, diagnostic procedures, maintenance schedules, component removal and installation, adjustments, troubleshooting, wiring schematics, illustrations, and detailed specifications. Diagnostics Included: Diagnostic flowcharts, troubleshooting guides for common symptoms, ignition system testing, fuel system pressure testing, electrical circuit diagnosis using multimeter and wiring diagrams. Technical Depth Technical Depth: Factory-level detail, equivalent to that used by dealership technicians. Covers everything from routine maintenance and fluid changes to complex diagnostics, component overhauls, and electrical system troubleshooting. Includes detailed diagrams and schematics for accurate repairs. Electrical Diagnostics Depth: Extremely detailed electrical schematics covering all circuits, component locations, and diagnostic troubleshooting procedures for the entire electrical system. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, printable pages with clear text and diagrams. Images can be blown up for larger views. Binding Type Binding Type: Digital (no physical binding) Paper Type Paper Type: N/A (Digital Format) Requirements Requirements: Adobe PDF Reader and Winzip (or similar decompression utility) are required, both are available free online. ⚙️ Engine Specifications Primary Engine Primary Engine: 4.3L (262 cu in) V6 'Vortec' (LG2 code) Performance Horsepower: Approx. 160-165 hp @ 4000 rpm (factory spec varies slightly by configuration) Torque: Approx. 230-235 lb-ft @ 2000 rpm (factory spec varies slightly by configuration) Fuel System Fuel System: Throttle Body Injection (TBI) for the 4.3L V6. Carbureted options (e.g., 305 V8) may have been available in certain configurations, but TBI was becoming standard for efficiency and emissions. Fuel Pressure Tbi: Typical TBI fuel pressure specification for GM vehicles of this era is in the range of 9-13 psi. Manual will provide exact spec. Engine Options Engine Options: Likely included the 5.0L (305 cu in) V8 and potentially the 5.7L (350 cu in) V8 engine in some configurations. The 4.3L V6 was a very common and capable powerplant for this model. Engine Codes Engine Codes: LG2 (4.3L V6 TBI), L03 (5.0L V8 TBI), L05 (5.7L V8 TBI) - verify based on specific VIN. Ignition System Ignition System: Electronic Ignition (HEI...