This comprehensive 1991 Chevrolet Pickup S10 Service and Repair Manual provides detailed instructions, diagrams, and specifications for maintaining, servicing, diagnosing and repairing your vehicle. This manual, identical to those used by technicians at dealerships, covers all models and repair procedures from A to Z.

It includes step-by-step instructions, illustrations, wiring schematics, and specifications, allowing you to tackle any repair job with confidence. You'll find information on a wide range of topics including:

* **Maintenance:** Routine maintenance schedules, fluid capacities, and component checks.
* **Engine:** Detailed coverage of engine components, repair procedures, and troubleshooting tips.
* **Control System:** Understanding and repairing the various electronic control systems.
* **Mechanical:** Detailed information on the vehicle's mechanical systems, including the transmission, drivetrain, suspension, and brakes.
* **Fuel Service Specifications:** Fuel system components, repair procedures, and fuel specifications.
* **Emission Control:** Information on emission control systems, diagnostics, and repair procedures.
* **Intake Exhaust Cooling:** Detailed coverage of the intake, exhaust, and cooling systems.
* **Lube:** Lubrication specifications and procedures for the entire vehicle.
* **Ignition Starting Charging:** Repair and maintenance information for the ignition, starting, and charging systems.
* **Auto Transmission Clutch:** Detailed information on automatic transmissions, clutches, and repair procedures.
* **Manual Transmission:** Comprehensive coverage of manual transmissions, repair procedures, and troubleshooting.
* **Transfer Propeller Shaft:** Information on the transfer case, propeller shaft, and related components.
* **Drive Shaft:** Repair procedures for the drive shaft and associated components.
* **Differential:** Detailed information on differentials, repair procedures, and troubleshooting.
* **Axle Suspension:** Coverage of axles, suspension components, repair procedures, and diagnostics.
* **Tire & Wheel:** Tire and wheel specifications, maintenance procedures, and replacement information.
* **Brake Control:** Understanding and repairing the brake control system.
* **Brake:** Detailed information on brake components, repair procedures, and troubleshooting.
* **Parking Brake:** Repair and maintenance information for the parking brake system.
* **Steering Column:** Coverage of steering column components, repair procedures, and diagnostics.
* **Power Steering:** Repair and maintenance procedures for the power steering system.
* **Air Condition:** Detailed information on the air conditioning system, repair procedures, and troubleshooting.
* **Suppl Restraint System:** Understanding and repairing the supplementary restraint system (airbags).
* **Seat Belt:** Information on seat belt components, repair procedures, and adjustments.
* **Engine Immobilizer:** Details on the engine immobilizer system.
* **Cruise Control:** Repair and maintenance information for the cruise control system.
* **Wiper & Washer:** Coverage of wipers, washers, and related components.
* **Door Lock:** Detailed information on door locks, repair procedures, and adjustments.
* **Meter Audio/Visual:** Understanding and repairing the instrument cluster and audio/visual systems.
* **Horn:** Repair and maintenance procedures for the horn system.
* **Windshield/Glass Mirror:** Information on windshields, glass, mirrors, and related components.
* **Instrument Panel:** Details on the instrument panel, repair procedures, and adjustments.
* **Seat:** Coverage of seats, repair procedures, and adjustments.
* **Engine Hood/ Door:** Repair and maintenance information for the engine hood and doors.
* **Exterior & Interior:** Details on exterior and interior components, repair procedures, and adjustments.
* **Electrical:** Comprehensive coverage of electrical systems, wiring diagrams, and troubleshooting.
* **Multiplex/ Can Communication:** Information on multiplex and CAN communication systems.

This manual empowers you to perform your own repairs and save money on costly service visits. No more flipping through books to find what you need. Print only the pages and diagrams you require, ensuring you have the information you need right at hand.

The 1991 Chevrolet S10 Pickup is a classic example of the American compact pickup truck, representing a period of significant evolution in the segment. This generation, first introduced in 1982, marked a departure from the previous, more rudimentary S10s, with a refined design that emphasized comfort and practicality. The 1991 model featured a sleek, aerodynamic body style with sharp lines and a modern interior. Under the hood, it was available with a range of powerful and fuel-efficient engines, including the 2.5L four-cylinder and the 4.3L V6, both known for their reliability and performance. The S10 offered a versatile range of configurations, from basic work trucks to more luxurious trim levels, catering to a wide range of needs and preferences. Its rugged construction, combined with its impressive towing capacity and ample cargo space, made it a popular choice for both recreational and commercial use.

The 1991 S10's popularity extended beyond its functional characteristics. Its sleek design, comfortable interior, and reputation for reliability made it a desirable vehicle for everyday driving and weekend adventures alike. It was a model that appealed to a broad spectrum of buyers, from young professionals to families and small business owners. The S10's enduring legacy is evident in its continued presence on the roads today, with many enthusiasts maintaining and restoring these classic pickups. The 1991 Chevrolet S10 Pickup stands as a testament to the American spirit of ingenuity and innovation, holding a special place in automotive history as a symbol of practicality, performance, and affordability. The S10, in its various iterations, helped to define the compact pickup truck segment, paving the way for the numerous modern models that continue to embody its spirit of versatility and value.