Systems Covered:
Maintenance, Engine, Control System, Mechanical, Fuel Service Specifications, Emission Control, Intake Exhaust Cooling, Lube, Ignition Starting Charging, Auto Transmission, Clutch, Manual Transmission, Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension, Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering, Air Condition, Suppl Restraint System, Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter Audio/Visual, Horn, Windshield/Glass Mirror, Instrument Panel, Seat, Engine Hood/Door, Exterior & Interior, Electrical, Multiplex/Can Communication
Brake System Coverage:
Front and rear disc brakes, ABS system components, hydraulic lines, master cylinder, parking brake mechanism
Suspension System Coverage:
Independent front and rear suspension, control arms, springs, shock absorbers, anti-roll bars, steering knuckle components
Fuel System Coverage:
Fuel pump, fuel injectors, fuel pressure regulator, fuel filter, TPI system components
Electrical System Coverage:
Alternator, starter, battery, ignition system, lighting, power accessories, sensors, actuators
Body And Trim Coverage:
Interior and exterior trim removal and installation, body panel alignment, door and window mechanisms
Procedures Included:
Step-by-step repair instructions, diagnostic procedures, troubleshooting, routine maintenance, component replacement, wiring schematic interpretation, component adjustment, fluid service
Wiring Schematics Coverage:
Complete and detailed wiring diagrams for all vehicle systems, including engine, chassis, and body electrical
Engine Rebuild Procedures:
Detailed instructions for complete engine disassembly, inspection, component replacement, and reassembly
Air Conditioning Service:
Refrigerant handling, component replacement, leak detection, system evacuation and charging
Technical Depth:
Factory-level detail, designed for dealership technicians, covering basic to advanced repairs and diagnostics
Diagnostic Procedures:
In-depth diagnostic trees and troubleshooting guides for common and uncommon issues
Technical Specifications:
Includes detailed specifications for measurements, clearances, pressures, and voltages
Primary Engine:
5.7L L98 V8 (350 ci)
Horsepower:
230 hp @ 4,000 rpm
Torque:
330 lb-ft @ 3,200 rpm
Fuel System:
Bosch Tuned Port Injection (TPI)
Engine Management:
ECM (Engine Control Module)
Diagnostic Trouble Codes:
Covered in detail, including flashing procedures
Emissions Control System:
Catalytic converter, EGR (Exhaust Gas Recirculation) system, O2 sensors
Cooling System Type:
Pressurized, Liquid-Cooled
Oil Capacity Quarts:
5.0 (with filter)
Oil Change Interval:
Every 3,000 miles or 3 months (recommendation)
Transmission Fluid Change Interval:
Every 30,000 miles or 24 months (recommendation)
Coolant Change Interval:
Every 30,000 miles or 24 months (recommendation)
Engine Oil Type:
API SG, SAE 5W-30 (or 10W-30 depending on climate)
Coolant Type:
Ethylene Glycol based, permanent type (e.g., Prestone)
Known Issues:
Early C4s can have issues with dashboard cracking, electronic control module (ECM) failures, and some minor interior trim degradation. Specific to 1987 L98 engines, potential issues may relate to sensor accuracy within the TPI system.
Spark Plugs:
AC Delco Rapid-Fire or equivalent (specific part numbers detailed in manual)
Oil Filter Part Number:
PF44 (AC Delco) or equivalent
Air Filter Part Number:
A1243C (AC Delco) or equivalent