Market Position:
Essential resource for owners and independent repair shops needing accurate, factory-level repair information for the 1990 Chevrolet C1500.
Competitive Analysis:
Offers superior convenience and accessibility compared to older printed manuals. Licensed OE data ensures accuracy and completeness, surpassing generic repair guides.
Key Features:
Licensed OE materials, instant online access, compatibility with all digital devices, annual access with renewal options, detailed system coverage.
Systems Covered:
Engine, Drivetrain, Brakes, Suspension, Steering, Electrical System, HVAC, Body, Fuel System, Cooling System, Exhaust System, Ignition System, Power Steering, Frame and Body.
Procedures Included:
Maintenance, troubleshooting, diagnostics, repair, removal, installation, overhaul, and adjustment for all covered systems.
Technical Depth:
Factory-derived OE (Original Equipment) level detail, suitable for DIY mechanics and professional technicians. Includes detailed diagrams, specifications, and step-by-step instructions.
Wheelbase 1:
118.0 inches (Standard Bed)
Wheelbase 2:
131.5 inches (Long Bed)
Length 1:
194.7 inches (Standard Bed)
Length 2:
208.2 inches (Long Bed)
Curb Weight Approx:
3,800 - 4,200 lbs (Varies by configuration)
Gvw Range:
5,200 - 6,000 lbs (Varies by configuration)
Infotainment System:
Basic AM/FM radio with cassette player, optional CD player, manual climate controls.
Driver Assistance Features:
Limited to optional ABS (rear axle only) for this model year.
Connectivity Features:
None (No integrated Bluetooth, USB, or navigation).
Oil Change Interval:
Every 3,000 to 5,000 miles or 6 months, whichever comes first (using recommended oil type).
Coolant Flush Interval:
Every 24,000 miles or 2 years.
Spark Plug Replacement Interval:
Approximately 30,000 to 60,000 miles, depending on spark plug type.
Engine Oil Specification:
API SG or SH rated, SAE 5W-30 or 10W-30 (depending on ambient temperature).
Engine Oil Capacity 1:
4.5 quarts (4.3L V6) with filter.
Engine Oil Capacity 2:
5.0 quarts (5.0L V8) with filter.
Transmission Fluid Specification:
Dexron-III (or equivalent) Automatic Transmission Fluid (ATF).
Transmission Fluid Capacity:
Approximately 4.5 quarts (for dry fill of 700R4/4L60).
Coolant Specification:
Ethylene Glycol based, 50/50 mix with distilled water.
Common Issue Tbi Issues:
Throttle Body Injection (TBI) system can be prone to issues with injectors, fuel pressure regulators, and idle air control (IAC) valves.
Common Issue Heater Core:
Heater core leaks are a known problem, often requiring dashboard removal for replacement.
Common Issue Electrical:
Aging wiring harnesses and connectors can lead to intermittent electrical problems.
Brand Heritage:
Chevrolet has a long-standing legacy in the pickup truck market, known for durability and utility.
Model Evolution:
The 1990 C1500 marked the debut of the GMT400 platform, a complete redesign offering improved aerodynamics, ride comfort, and modern styling compared to its predecessors.
Production Years:
1988-1998 (GMT400 platform)
Production Locations:
Various General Motors assembly plants in North America.
