🏷️ Basic Information Identification Make: Chevrolet Model: C/K Model Range: C/K 1500, C/K 2500, C/K 3500, Silverado, Sierra, Cheyenne Years Covered: 1988, 1989, 1990, 1991, 1992, 1993 Codes Platform Code: GMT400 👋 Introduction Market Position Positioning: Essential diagnostic and repair guide for owners and technicians working on the highly popular and robust Chevrolet/GMC C/K pickup and SUV platform of the late 1980s and early 1990s. Competitive Analysis Comparison: Superior to generic repair guides due to its precise, factory-backed specifications and procedures directly applicable to the GMT400 platform, mirroring the content used by dealership professionals. Key Features Features: Comprehensive, vehicle-specific, dealer-level repair information, detailed wiring diagrams, exploded views, torque specifications, troubleshooting guides. 📋 Manual Details Coverage Areas Coverage Scope: All models, all repairs A-Z Page Count Estimated Page Count: 1500+ Manual Type Type: Factory Service and Repair Manual Publisher Origin: Represents content equivalent to Chilton, Haynes, or factory service manuals (FSMs), but typically sourced from OEM or authorized aftermarket publishers specializing in this era. Language Language: English Format Format: Printed Book 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel, ignition, exhaust, cooling, lubrication, clutch, manual transmission, automatic transmission, transfer case (4WD) Chassis: Frame, suspension (front/rear), steering, brakes (front/rear disc/drum, ABS), wheels, tires Electrical: Battery, charging system, starting system, lighting, instruments, body control modules, HVAC controls, audio system, power accessories, body electrical diagnostics, wiring diagrams Body: Body structure, exterior panels, interior trim, doors, windows, seats, HVAC system (components and operation), body sealing Emissions Control: Information on emission control devices like EGR, catalytic converters, and evaporative emission control systems. Procedures Included Maintenance: Oil change, filter replacement, fluid checks/changes, tune-ups, belt/hose inspection/replacement, brake pad/shoe replacement, tire rotation Repair: Engine overhaul, transmission rebuild, suspension component replacement, brake caliper/master cylinder replacement, steering gear repair, electrical component diagnosis and replacement, body panel repair Diagnostics: Troubleshooting charts, diagnostic trouble codes (DTCs), wiring diagram interpretation, component testing procedures Troubleshooting: Systematic fault finding for engine performance, electrical issues, transmission problems, brake concerns, and HVAC system malfunctions. Technical Depth Depth: Vehicle-specific, detailed, from basic maintenance to complete engine and transmission rebuilds, including diagnostic procedures and specifications. Engine Rebuild: Complete step-by-step instructions for engine disassembly, inspection, repair, and reassembly, including bearing clearances, ring gaps, and valve seating. Electrical Diagnostics: Detailed wiring diagrams are provided for every system, allowing technicians to trace circuits, test components, and diagnose electrical faults effectively. 📊 Manual Specifications File Format Format Details: This is a printed publication, not a digital file. Print Quality Quality: High-quality printing with clear diagrams and text, comparable to original dealership manuals. Binding Type Binding: Stapled or perfect bound (typical for workshop manuals). Paper Type Paper: Durable, off-white paper stock, suitable for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Options: 4.3L V6 (VIN Z, W), 5.0L V8 (VIN H), 5.7L V8 (VIN K), 7.4L V8 (VIN J) Performance 4.3L V6 Hp: Approx. 160-170 hp (varies by year/tune) 5.0L V8 Hp: Approx. 175-190 hp (varies by year/tune) 5.7L V8 Hp: Approx. 210-230 hp (varies by year/tune) 7.4L V8 Hp: Approx. 230-255 hp (varies by year/tune) Fuel System Fuel Delivery Type: Electronic Fuel Injection (EFI) / Throttle Body Injection (TBI) for earlier models, Central Multi-Port Fuel Injection (CSFI) later in the range. Fuel Type: Unleaded gasoline Engine Management ECM Details: ECM (Engine Control Module) calibration for emissions and performance, diagnostic connector available. Sensor Systems: Coverage of sensors such as MAP, TPS, ECT, O2, Knock, and Crankshaft Position Sensors (CPS) and their diagnostic procedures. 🔧 Transmission Standard Standard Transmission Type: NV3500 5-speed manual (primarily on 1500 series), NP435 4-speed manual (heavy duty). Optional Automatic Transmission Options: 4L60 4-speed automatic (RWD/4WD), 4L80E 4-speed automatic (heavy duty, 2500/3500). Features 4Wd Transfer Case: Manual shift (NP208, NP241) or electronic shift (Autotrac) transfer cases covered for 4WD models. Fluid Specs Atf Type: Dexron-III Automatic Transmission Fluid (or equivalent). Manual Transmission Fluid Type: GL-4 or GL-5 gear oil (specific viscosity varies by transmission model, e.g., 75W-90). 📐 Dimensions Exterior Wheelbase Options: Various, including 118.0" (Regular Cab), 131.5" (Extended Cab), 153.0" (Crew Cab, some models). Body Styles: 2WD/4WD Pickup Trucks (Fleetside, Step-side), Chassis Cab, Suburban, Tahoe/Yukon (SUV variants of the platform). Weights Gvwr Range: Ranges from approximately 6,000 lbs (C1500) to over 10,000 lbs (C3500HD). Curb Weight Range: Varies significantly based on configuration, typically 4,000-6,000 lbs. 🛡️ Safety Features Ratings NHTSA Ratings Era: As per 1988-1993 era standards, specific NHTSA ratings may not be readily available in a comparable format to modern testing. Active Features ABS Availability: Anti-lock Braking System (ABS) available on some models, particularly later years and heavier duty trucks. Passive Features Seatbelts: Three-point shoulder belts and lap belts standard, driver-side airbag introduced in later years of the generation (check specific model year). 💡 Technology Features Infotainment Audio System: Factory AM/FM/Cassette stereo systems, with optional CD players in later years. Basic radio controls, speaker configurations vary by trim and...