🏷️ Basic Information Identification Make: Chevrolet Model: C/K Year: 1988 Codes Chassis Code: GMT400 (First Generation C/K) 👋 Introduction Market Position Segment: Full-size pickup truck and sport utility vehicle (SUV) segment. Introduction Year Of Platform: 1987 (for the GMT400 platform, with 1988 being the first full model year). Competitive Analysis Key Competitors: Ford F-Series, Dodge Ram. Key Features Platform Significance: The 1988 model year marks the introduction of the highly influential GMT400 platform, a significant redesign for Chevrolet trucks. Manual Value Proposition: Provides dealership-level accuracy and detail for owners and independent repair shops, ensuring correct maintenance and repair procedures. 📋 Manual Details Coverage Areas Full Vehicle Coverage: All models and all repairs A-Z Target Audience: Professional Dealership Technicians Page Count Estimated Page Count: 1000+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: Printed Publication 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul procedures, component testing, diagnosis, torque specifications, timing procedures for all 1988 C/K engine options. Engine Electrical: Ignition system diagnosis and repair, starting system, charging system, ECM/PCM operation and testing, sensor data, wiring diagrams. Fuel System: Fuel injection system diagnosis (TBI, MPI), fuel pump testing, pressure specifications, injector testing, fuel filter replacement. Transmission Manual: Disassembly, assembly, clutch service, torque converter diagnosis, fluid specifications, shift linkage adjustment for Muncie SM465 and Getrag G290. Transmission Automatic: Diagnosis and repair of TH400, TH700-R4, NV4500 (where applicable for OD), including hydraulic control, valve body operation, electronic controls, fluid levels and service. Drivetrain: Front and rear axle service, differential types (open, limited-slip), CV joints (if applicable to 4WD), propeller shaft balancing, U-joint replacement. Suspension: Front independent suspension (torsion bar), rear leaf spring system, shock absorber replacement, ball joint and tie rod end service, alignment specifications. Steering: Power steering system diagnosis, pump and gear replacement, steering column service, steering wheel removal. Brakes: Front disc brake service (rotor, pad replacement), rear drum brake service, hydraulic system bleeding, ABS system diagnosis (if equipped), parking brake adjustment. Electrical System: Complete wiring diagrams for all circuits, fuse box locations, relay functions, lighting systems, accessory circuits, instrument cluster diagnostics. HVAC: Air conditioning system diagnosis, refrigerant handling and specifications (R-12), heater core replacement, blower motor service, climate control panel. Body And Frame: Body panel repair, rust prevention, door and tailgate service, glass replacement, interior trim removal and installation, frame straightening data. Diagnostics: Troubleshooting charts, symptom-based diagnosis, diagnostic trouble codes (DTCs) interpretation (OBD-I era), diagnostic tool usage. Procedures Included Routine Maintenance: Oil change intervals and fluid specifications, filter replacement procedures, spark plug recommendations, belt tensioning. Major Repairs: Engine rebuilds, transmission overhauls, differential repairs, suspension component replacement, brake system overhauls. Troubleshooting: Step-by-step diagnostic procedures for common and uncommon faults across all vehicle systems. Technical Specifications: Torque values for all fasteners, alignment angles, fluid capacities, engine specifications, electrical component resistance and voltage values. Special Tools: Identification and usage of specialized tools required for specific repair procedures. Technical Depth Depth: Comprehensive, from basic maintenance to complete component disassembly, repair, and reassembly. Detailed diagnostic flowcharts. 📊 Manual Specifications File Format Digital Format Notes: As a printed publication, it is not a digital file format. However, its content is derived from original OEM technical documentation. Print Quality Quality: High-quality print, designed for durability in a workshop environment. Binding Type Binding: Likely a sturdy, spiral-bound or perfect-bound format for lay-flat usability in a service bay. Paper Type Paper: Durable paper stock, often coated or heavy-weight to withstand grease and frequent handling. ⚙️ Engine Specifications Primary Engine Engine Options: 4.3L V6 (VIN Z), 5.0L V8 (VIN H), 5.7L V8 (VIN K), 7.4L V8 (VIN L). Performance Horsepower Torque Range: Varies by engine. For example, the 4.3L V6 typically produced around 160 hp and 230 lb-ft torque. Specific values detailed within the manual. Fuel System Injection Type: Throttle Body Injection (TBI) and Multi-Port Fuel Injection (MPI) depending on engine variant. Engine Identification V8 Engine Code Example: VIN K for the 5.7L V8. Cooling System Coolant Type: Ethylene Glycol based coolant, typically a 50/50 mix with distilled water. Specific GM color/type outlined in manual. Lubrication Oil Viscosity Recommendation: Commonly 5W-30 or 10W-30 depending on ambient temperature. Manual will specify exact ranges and GM specification. 🔧 Transmission Standard Manual Transmission: Muncie SM465 (4-speed manual). Optional Automatic Transmission: TH400 (3-speed automatic), TH700-R4 (4-speed automatic with overdrive). Features Overdrive Availability: Available on the TH700-R4 transmission for improved fuel economy on the highway. Fluid Type Automatic Transmission Fluid: Dexron-II or equivalent for TH400 and TH700-R4. Manual will specify the exact GM P/N. 📐 Dimensions Exterior Body Styles: Regular Cab, Extended Cab, Chassis Cab; Fleetside (Styleside) and Wideside bed options (2WD and 4WD). Weights Gvwr Range: Gross Vehicle Weight Rating varies significantly by configuration, typically from 5,400 lbs to 7,000+ lbs for half-ton and three-quarter-ton models. 🛡️ Safety Features Ratings Crash Test Info Notes: NHTSA ratings for 1988 vehicles are less...