1991Chevrolet & GMC S / T Models Light Truck Service Manual - 3 Volume Set

1991 Light Truck S/T Models Service Manual - 3 Volume Set

This service manual contains diagnosis, "on-vehicle" maintenance, and light repair for Light Duty Truck Models "S-Truck." Fuel and emissions related componenets for throttle body injection vehicles are covered in a separate manual. Procedures involving disassembly and assembly of major components for these vehicles are published in a separate "truck unit repair manual." This manual should be kept in a handy place for ready Reference. If properly used, it will meet the needs of technicians and vehicle owners.

Vehicles Covered:

• S/T Pickup Reg. Cab
• S/T Pickup Ext. Cab
• S/T Jimmy, Blazer 2 Door
• S/T Jimmy, Blazer 4 Door

Contents Volume 1:

• General Information
• Heating and Air Conditioning
• Frame and Cab
• Steering, Suspension, Wheels and Tires
• Propeller Shaft and Axle
• Brakes
• Engine
• Transmission and Clutch
• Electrical
• Accessories
• Body
• Index

Contents Volume 2 Syclone Supplement:

• General Information
• Heating and Air Conditioning
• Frame and Cab
• Steering, Suspension, Wheels and Tires
• Propeller Shaft and Axle
• Brakes
• Engine
• Transmission and Clutch
• Electrical
• Accessories
• Body
• Index
• Syclone Model Electrical Diagrams and Diagnosis Manual

Contents Volume 3:

• General Information
• Driveability Symptoms
• Computer Command Control
• Fuel Control
• Evaporative Emission Control
• Ignition System / EST
• Electronic Spark Control
• Air Management
• Exhaust Gas Recirculation
• Automatic Transmission Converter Clutch and Transmission Shift Light
• Positive Crankcase Ventilation
• Thermostatic Air Cleaner
• Special Tools and Specifications
• Abbreviations
• Alphabetical Index