Positioning:
Essential diagnostic and repair resource for 1990 Chevrolet K2500 owners and technicians
Advantage:
Official licensing, OE material derivation, digital convenience, cost-effectiveness compared to print
Feature 1:
Instant digital access
Feature 2:
Comprehensive system coverage
Feature 3:
Licensed OE content for accuracy
Feature 4:
Detailed diagrams and illustrations
Engine Mechanical:
Engine disassembly, inspection, assembly, timing, lubrication, cooling, fuel, exhaust
Engine Performance:
Engine diagnostics, fuel injection system, ignition system, emissions control
Transmission:
Manual and automatic transmission service, repair, diagnostics, fluid specifications
Drivetrain:
Front and rear axles, driveshafts, U-joints, differentials, hubs, CV joints (if applicable)
Suspension:
Front and rear suspension components, alignment, shock absorbers, springs, bushings
Steering:
Steering column, steering gear, power steering system, linkages
Brakes:
Hydraulic system, ABS (if equipped), brake calipers, rotors, pads, lines, parking brake
Electrical System:
Battery, charging system, starting system, lighting, ignition, body electrical, diagnostics
HVAC:
Heating, ventilation, air conditioning system components, refrigerant, diagnostics
Body And Frame:
Body panel removal/installation, interior trim, doors, glass, frame inspection and repair
Chassis:
Frame, mounts, exhaust system routing
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems
Routine Maintenance:
Oil changes, filter replacements, fluid checks, lubrication schedules
Major Repairs:
Engine overhaul, transmission rebuild, differential service, suspension component replacement
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs) interpretation
Component Replacement:
Step-by-step instructions for replacing virtually all mechanical and electrical components
Specifications:
Torque specifications, clearances, fluid capacities, electrical resistance values
Depth:
Comprehensive, factory-level detail suitable for professional technicians and advanced DIYers
Engine Options:
Multiple V8 gasoline engines, likely including 5.0L (305 ci) and 5.7L (350 ci) Vortec/TBI, and potentially a 7.4L (454 ci) option.
Horsepower Torque Range:
Typical for this era: 160-230 HP and 240-380 lb-ft torque, depending on specific engine option.
Fuel Delivery:
Throttle Body Injection (TBI) for most gasoline engines, potentially Carbureted on some earlier or base models.
Ignition Type:
Electronic Ignition (EST/DIS or distributor-based)
Coolant Type:
Ethylene Glycol (e.g., Dex-Cool compatible, or traditional green coolant)
Body Styles:
Regular Cab, Extended Cab (Club Coupe), Fleetside and Wideside bed configurations.
Wheelbase:
Various wheelbases available (e.g., 130" for Regular Cab, 154" for Extended Cab).
Gvwr:
Gross Vehicle Weight Rating varies by configuration, but for K2500 typically in the 7,200-8,600 lbs range.
Curb Weight:
Varies significantly by cab, drivetrain, and options, but generally 4,500-5,500 lbs.
Oil Change Interval:
Typically 3,000-5,000 miles or 6 months, depending on driving conditions and oil type. Check manual for specific recommendations.
Transmission Fluid Change:
Automatic transmission fluid and filter typically recommended every 30,000-60,000 miles.
Coolant Change:
Engine coolant flush and replacement typically every 30,000-60,000 miles or 2-4 years.
Engine Oil Type:
API Service SG, SF, or SH classified oils. Viscosity typically 5W-30 or 10W-30 depending on climate and engine.
Brake Fluid Type:
DOT 3 brake fluid.
Power Steering Fluid:
Dexron II/III or compatible power steering fluid.
Common Wear Item:
Ball joints, tie rod ends, universal joints (U-joints) due to heavy-duty use.
Engine Tbi Issues:
Throttle Body Injection (TBI) units can be prone to clogged injectors or vacuum leaks.
Electrical Gremlins:
Older wiring harnesses can develop issues, especially grounds and connections.
Rear Main Seal Leaks:
Can be a common leak point on higher mileage V8 engines.
Rust Concerns:
Frame and body rust can be prevalent in areas with road salt exposure.
Heritage:
Chevrolet's long-standing legacy in trucks, particularly with the C/K platform, known for durability and capability.
Platform:
Third generation of the GMT400 platform, introduced in 1988. The K2500 is the 4WD variant of the C2500.
Manufacturing Plant:
Various GM assembly plants in North America, including Fort Wayne, Indiana and Flint, Michigan.
