This comprehensive 1990 Chevrolet Astro Service and Repair Manual provides detailed instructions and illustrations to help you maintain, service, diagnose, and repair your vehicle. This manual is not generic repair information; it is specifically designed for the 1990 Chevrolet Astro and contains the same information used by technicians at dealerships.

The manual covers all models and repairs, from basic maintenance to complex mechanical and electrical issues. It includes step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications to guide you through every repair. You'll find information on a wide range of topics, including:

* **Maintenance:** Regular maintenance schedules, fluid checks, and replacement procedures.
* **Engine:** Engine components, operation, troubleshooting, and repair.
* **Control System:** Electronic control systems, sensors, actuators, and diagnostics.
* **Mechanical:** Transmission, drivetrain, suspension, brakes, steering, and more.
* **Fuel Service Specifications:** Fuel system components, operation, and specifications.
* **Emission Control:** Emission control systems, components, and troubleshooting.
* **Intake Exhaust Cooling:** Cooling systems, components, and repair.
* **Lube:** Lubrication requirements and procedures for various components.
* **Ignition Starting Charging:** Ignition system, starting system, and charging system.
* **Auto Transmission Clutch:** Automatic transmission operation, repair, and troubleshooting.
* **Manual Transmission:** Manual transmission operation, repair, and troubleshooting.
* **Transfer Propeller Shaft:** Transfer case, propeller shaft, and related components.
* **Drive Shaft:** Drive shaft operation, repair, and replacement.
* **Differential:** Differential operation, repair, and maintenance.
* **Axle Suspension:** Suspension components, operation, and repair.
* **Tire & Wheel:** Tire specifications, wheel alignment, and maintenance.
* **Brake Control:** Brake system control components, operation, and troubleshooting.
* **Brake:** Brake system components, operation, and repair.
* **Parking Brake:** Parking brake operation, adjustment, and repair.
* **Steering Column:** Steering column components, operation, and repair.
* **Power Steering:** Power steering system components, operation, and repair.
* **Air Condition:** Air conditioning system components, operation, and repair.
* **Suppl Restraint System:** Supplemental restraint system (SRS) operation and components.
* **Seat Belt:** Seat belt operation, adjustment, and repair.
* **Engine Immobilizer:** Immobilizer system operation and troubleshooting.
* **Cruise Control:** Cruise control system operation, adjustment, and repair.
* **Wiper & Washer:** Wiper and washer system operation, maintenance, and repair.
* **Door Lock:** Door lock operation, troubleshooting, and repair.
* **Meter Audio/Visual:** Gauges, warning lights, and audio/visual systems.
* **Horn:** Horn operation, troubleshooting, and repair.
* **Windshield/Glass Mirror:** Windshield, glass, and mirror replacement and repair.
* **Instrument Panel:** Instrument panel components, operation, and repair.
* **Seat:** Seat operation, adjustment, and repair.
* **Engine Hood/ Door:** Hood and door operation, adjustment, and repair.
* **Exterior & Interior:** Exterior and interior trim, components, and repair.
* **Electrical:** Electrical system components, wiring diagrams, and troubleshooting.
* **Multiplex/ Can Communication:** Multiplex and CAN communication systems and diagnostics.

This manual will provide you with the information you need to confidently perform a wide range of repairs and maintenance tasks on your 1990 Chevrolet Astro.

## The 1990 Chevrolet Astro: A Versatile and Durable Van for Work and Play

The 1990 Chevrolet Astro, a full-size van produced by General Motors, represents a versatile and rugged vehicle that found favor with families, businesses, and adventurers alike. This generation of Astro, launched in 1985 and produced until 2005, offered a spacious interior with seating for up to eight passengers, a significant cargo capacity, and a choice between a 4.3-liter V6 or a 5.0-liter V8 engine, both renowned for their durability and reliability, making it a workhorse for hauling cargo and towing trailers. The Astro's unibody construction, while not as rigid as a traditional body-on-frame design, provided better fuel efficiency and handling, particularly in urban environments.

The Astro's popularity stemmed from its adaptability. It could be equipped with a variety of options, including rear sliding doors, a rear liftgate, and various trim levels. The Astro was a popular choice for families and adventurers due to its comfortable interior, plenty of storage space for luggage and camping gear, and ample room for passengers. Businesses found the Astro ideal for transporting goods and equipment, while its powerful engine and robust construction made it a reliable choice for light-duty towing. The 1990 Astro, in particular, marked the beginning of the second generation, which brought about significant design changes, including a more modern and aerodynamic exterior, a more spacious interior, and enhanced safety features. Its enduring legacy is attributed to its versatility, affordability, and reliability, solidifying the Astro's position as a classic American van.