This comprehensive service repair manual is specifically designed for the do-it-yourself enthusiast and experienced mechanic alike, providing detailed instructions and illustrations to service your 2002-2004 GMC Sonoma. It offers the same level of information your local dealer would use when performing repairs, making it an invaluable resource for maintaining your vehicle.

The manual walks you through each repair procedure step-by-step, with detailed substeps expanding on the information for clarity. Notes, cautions, and warnings are strategically placed throughout, highlighting critical information for safe and effective repairs. Bold figure numbers quickly connect illustrations to instructions, while enlarged insets allow you to examine parts with precision.

The manual features a numbered table of contents for easy navigation, ensuring you can find the information you need quickly. Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for convenient diagnosis and repair of your vehicle's electrical system.

This manual covers a wide range of topics, including:

* **Maintenance:** Stay on top of routine maintenance procedures to ensure your Sonoma runs smoothly.
* **Engine:** Diagnose and repair engine-related issues with comprehensive instructions and illustrations.
* **Control System:** Understand and troubleshoot your vehicle's control systems for optimal performance.
* **Mechanical:** Learn how to service and repair the mechanical components of your Sonoma.
* **Fuel Service Specifications:** Access detailed fuel system specifications for proper maintenance.
* **Emission Control:** Ensure your Sonoma meets emission standards with the help of this section.
* **Intake Exhaust Cooling:** Master the intricacies of your vehicle's intake and exhaust cooling systems.
* **Lube:** Find the correct lubrication specifications for optimal performance and longevity.
* **Ignition Starting Charging:** Diagnose and repair issues related to ignition, starting, and charging systems.
* **Auto Transmission Clutch:** Obtain detailed instructions for servicing your automatic transmission and clutch.
* **Manual Transmission:** Find comprehensive information for maintaining and repairing your manual transmission.
* **Transfer Propeller Shaft:** Learn how to service and repair your transfer case and propeller shaft.
* **Drive Shaft:** Obtain detailed instructions for inspecting and repairing your drive shaft.
* **Differential:** Understand the intricacies of your differential system and how to repair it.
* **Axle Suspension:** Learn how to service and repair your vehicle's axle and suspension components.
* **Tire & Wheel:** Find information on tire maintenance, wheel replacement, and proper inflation.
* **Brake Control:** Diagnose and repair issues with your brake control system.
* **Brake:** Service and repair your brake system with confidence.
* **Parking Brake:** Ensure your parking brake is in optimal working order.
* **Steering Column:** Learn how to diagnose and repair issues with your steering column.
* **Power Steering:** Maintain and repair your power steering system.
* **Air Condition:** Service and repair your air conditioning system for optimal comfort.
* **Suppl Restraint System:** Understand and maintain your vehicle's supplemental restraint system for safety.
* **Seat Belt:** Ensure your seat belts are in good working order.
* **Engine Immobilizer:** Learn how to address issues with your engine immobilizer system.
* **Cruise Control:** Diagnose and repair problems with your cruise control system.
* **Wiper & Washer:** Maintain and repair your windshield wiper and washer system.
* **Door Lock:** Troubleshoot and repair issues with your door locks.
* **Meter Audio/Visual:** Learn how to service and repair your vehicle's instrument cluster.
* **Horn:** Find instructions on repairing your vehicle's horn.
* **Windshield/Glass Mirror:** Get information on replacing and repairing your windshield and mirrors.
* **Instrument Panel:** Learn how to service and repair your instrument panel.
* **Seat:** Diagnose and repair issues with your vehicle's seats.
* **Engine Hood/ Door:** Find instructions for repairing your engine hood and doors.
* **Exterior & Interior:** Learn about general maintenance and repair for the exterior and interior of your Sonoma.
* **Electrical:** Address any electrical issues with the help of this comprehensive guide.
* **Multiplex/ Can Communication:** Understand and troubleshoot your vehicle's multiplex and CAN communication systems.

This service repair manual empowers you to confidently handle any maintenance or repair needs on your 2002-2004 GMC Sonoma, saving you time and money in the process.

The GMC Sonoma, a compact pickup truck produced by General Motors from 1992 to 2004, is a reliable and versatile vehicle that has found a loyal following among both work and leisure enthusiasts. The 2002-2004 model years were the final iterations of the Sonoma, marking the end of its production run. This particular generation of the Sonoma showcased a refined design, improved performance, and enhanced interior amenities. Powered by a 4.3-liter Vortec V6 engine, the Sonoma delivered a satisfying combination of power and fuel efficiency, making it an ideal choice for everyday driving and light hauling tasks. Its robust suspension system, coupled with a user-friendly cab and comfortable seating, ensured a smooth and comfortable ride, whether traversing city streets or tackling rugged terrain.

The 2002-2004 Sonoma came equipped with a comprehensive array of standard features, including power steering, power brakes, air conditioning, and a CD player. Optional extras were also available, such as a sunroof, cruise control, and leather upholstery, allowing customers to tailor the Sonoma to their preferences. Despite its relative affordability, the Sonoma provided a level of quality and craftsmanship that resonated with owners. While its production has ceased, the GMC Sonoma remains a popular choice for those seeking a capable and reliable compact pickup truck, proving its enduring legacy as a dependable and practical vehicle. The 2002-2004 service repair manual, specifically designed for this generation of the Sonoma, serves as an essential resource for owners, mechanics, and enthusiasts alike, offering detailed information on maintenance, repair, and troubleshooting procedures, ensuring the longevity and optimal performance of this beloved truck.