Target Audience:
DIY enthusiasts, independent repair shops, fleet maintenance
Advantage:
Official licensing, OE data derived, up-to-date digital format compared to outdated printed manuals
Convenience:
Instant online access, searchable content, available on multiple devices
Cost Effectiveness:
Saves money compared to dealership repairs and expensive printed manuals
Software Provider:
RepairSurge
Powertrain:
Engine (all variants), transmission (automatic and manual), transfer case, drive axles, differential
Chassis:
Suspension (front and rear), steering system, braking system (front and rear discs/drums, ABS)
Electrical:
Wiring diagrams, lighting, instrument panel, power accessories, charging system, starting system, ignition system, engine control module (ECM)
HVAC:
Heating, Ventilation, and Air Conditioning system diagnosis and repair
Body:
Exterior body panels, interior trim, doors, windows, seats, bumpers
Engine Mechanical:
Cylinder head removal/installation, piston and connecting rod service, crankshaft service, camshaft inspection and timing
Engine Performance:
Fuel system components (injectors, fuel pump, pressure regulator), ignition system components (coils, distributor, spark plugs), exhaust system
Fuel System Service:
Fuel pump replacement, fuel filter replacement, injector cleaning/replacement, fuel pressure testing
Maintenance:
Oil changes, filter replacements, fluid checks and changes, lubrication, tune-ups, spark plug replacement
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics
Repair:
Component removal and installation, overhaul procedures, assembly and disassembly
Suspension Repair:
Ball joint replacement, shock absorber/strut replacement, leaf spring service, steering linkage overhaul
Brake System Repair:
Brake pad/shoe replacement, caliper/wheel cylinder service, brake rotor/drum machining or replacement, ABS system bleeding and diagnosis
Electrical Diagnostics:
Troubleshooting charging system issues, starting circuit diagnosis, instrument cluster faults, power window/lock repair
Cooling System Service:
Radiator, water pump, thermostat, hoses, fan clutch replacement and diagnosis
Depth:
Factory-level diagnostic procedures, torque specifications, component tolerances, wiring schematics, system descriptions
Specifications Accuracy:
Precise torque values for all fasteners, critical component clearances, diagnostic parameter specifications
Engine Options:
4.3L V6 (Vortec 4300), 5.0L V8 (Vortec 5000), 5.7L V8 (Vortec 5700), 7.4L V8 (Vortec 7400)
Specific Engine Performance:
Detailed horsepower and torque figures for each engine variant (e.g., 5.7L V8: approx. 255 hp @ 4600 rpm, 330 lb-ft @ 2800 rpm)
Fuel Delivery:
Multi-port Fuel Injection (MPFI)
ECM Details:
Engine Control Module (ECM) specifications, sensor data, diagnostic routines
Diagnostic Trouble Codes:
Coverage of OBD-II (On-Board Diagnostics II) codes and their meanings
Wheelbase:
130.0 inches (Standard Cab), 157.5 inches (Extended/Crew Cab)
Overall Length:
Varies by cab and bed configuration (e.g., 220-246 inches)
Curb Weight:
Approx. 4,500 - 5,500 lbs depending on configuration
Gvwr:
6800 lbs (K2500) to 8600 lbs (K2500HD)
Payload Capacity:
Varies by configuration, typically 2000 - 3500 lbs
Towing Capacity:
Varies significantly by engine, axle ratio, and configuration; consult manual for specific ratings
Oil Change Interval:
Typically every 3,000 - 5,000 miles or 3-6 months, depending on driving conditions (refer to manual for specific oil type and interval)
Transmission Fluid Change:
Every 30,000 - 60,000 miles for automatic transmissions, inspect manual transmission fluid at 60,000 miles
Engine Oil:
API SG or higher, SAE 5W-30 or 10W-30 recommended (verify with manual based on engine and temperature)
Coolant:
GMC/GM approved ethylene glycol coolant (50/50 mix with distilled water)
Brake Fluid:
DOT 3 brake fluid
Power Steering Fluid:
GM Power Steering Fluid or Dexron III/VI ATF
Common Problems:
Potential for intake manifold gasket leaks (Vortec V8 engines), cracked dashboard material, ABS sensor failures, rear main seal leaks, transmission cooler line corrosion
Corrosion Points:
Potential for brake line corrosion, fuel line corrosion in certain climates
Oil Filter:
AC Delco PF1218, Fram PH8A, Wix 51515 (verify with manual or parts catalog)
Gmc Truck Legacy:
GMC's long-standing reputation for heavy-duty and commercial trucks, providing robust and reliable vehicles
Gmt400 Platform:
Part of the GMT400 platform, which represented a significant redesign for GM trucks, known for improved ride quality and aerodynamics over previous generations
Interior Updates Gmt400:
1998 saw minor interior updates for some models, but the core GMT400 design remained consistent
Production Period:
GMT400 platform produced from late 1987 (as 1988 models) through 2000 (for C/K trucks, Silverado/Sierra became distinct models later)
