This comprehensive service and repair manual is specifically designed for the 1997-2004 Buick Regal, covering all models and all repairs from A to Z. This manual provides the same detailed information used by technicians at dealerships to maintain, service, diagnose and repair your vehicle.

Within this manual, you will find complete step-by-step instructions, detailed diagrams, illustrations, wiring schematics, and specifications to confidently repair your vehicle. This comprehensive resource eliminates the need to flip through multiple books to find what you need. You can easily print only the pages and diagrams you require, ensuring you have the information readily available in your garage or workshop.

The manual covers a wide range of topics, including:

* **Maintenance:** Routine maintenance procedures, schedules, and recommendations for keeping your Regal in optimal condition.
* **Engine:** Detailed information on the engine, including its components, operation, troubleshooting, and repair procedures.
* **Control System:** In-depth coverage of the vehicle's control systems, such as the engine control unit (ECU), transmission control unit (TCU), and other electronic systems.
* **Mechanical:** Comprehensive information on the mechanical aspects of your Regal, including the suspension, brakes, steering, and drivetrain.
* **Fuel Service Specifications:** Detailed specifications for fuel systems, including fuel lines, injectors, and fuel pumps.
* **Emission Control:** Information on the vehicle's emission control system, including catalytic converter, oxygen sensors, and evaporative emission control system.
* **Intake Exhaust Cooling:** Detailed coverage of the intake and exhaust systems, including components, operation, and troubleshooting.
* **Lube:** Information on lubrication systems, including oil changes, filter replacements, and lubrication specifications.
* **Ignition Starting Charging:** Detailed information on the ignition system, starting system, and charging system.
* **Auto Transmission Clutch:** Comprehensive information on the automatic transmission system.
* **Manual Transmission:** Coverage of the manual transmission system, including gear selection, shifting mechanisms, and troubleshooting.
* **Transfer Propeller Shaft:** Information on the transfer case and propeller shaft.
* **Drive Shaft:** Detailed coverage of the drive shaft components, operation, and maintenance.
* **Differential:** Information on the differential system, including types, operation, and repair procedures.
* **Axle Suspension:** Detailed coverage of the axle and suspension systems, including components, operation, and troubleshooting.
* **Tire & Wheel:** Information on tire and wheel specifications, maintenance, and replacement procedures.
* **Brake Control:** Coverage of the brake control system, including anti-lock braking system (ABS) and electronic brakeforce distribution (EBD).
* **Brake:** Comprehensive information on the brake system, including components, operation, and repair procedures.
* **Parking Brake:** Information on the parking brake system, including operation and adjustment.
* **Steering Column:** Detailed coverage of the steering column, including components, operation, and troubleshooting.
* **Power Steering:** Information on the power steering system, including components, operation, and repair procedures.
* **Air Condition:** Detailed coverage of the air conditioning system, including components, operation, and troubleshooting.
* **Suppl Restraint System:** Information on the supplemental restraint system (SRS), including airbags and seatbelt pretensioners.
* **Seat Belt:** Information on the seatbelt system, including operation, adjustment, and maintenance.
* **Engine Immobilizer:** Information on the engine immobilizer system, including operation and troubleshooting.
* **Cruise Control:** Detailed coverage of the cruise control system, including components, operation, and troubleshooting.
* **Wiper & Washer:** Information on the windshield wiper and washer system, including components, operation, and maintenance.
* **Door Lock:** Detailed coverage of the door lock system, including components, operation, and troubleshooting.
* **Meter Audio/Visual:** Information on the instrument cluster and audio/visual systems, including operation and troubleshooting.
* **Horn:** Information on the horn system, including operation and troubleshooting.
* **Windshield/Glass Mirror:** Information on the windshield, glass, and mirror systems, including replacement procedures.
* **Instrument Panel:** Detailed coverage of the instrument panel, including components, operation, and troubleshooting.
* **Seat:** Information on the seat systems, including adjustment, operation, and maintenance.
* **Engine Hood/ Door:** Information on the engine hood and door systems, including operation and troubleshooting.
* **Exterior & Interior:** Detailed coverage of the exterior and interior features of your Regal.
* **Electrical:** Comprehensive information on the electrical system, including wiring diagrams, components, and troubleshooting.
* **Multiplex/ Can Communication:** Information on the multiplex and CAN communication systems, including operation and troubleshooting.

This manual provides you with all the information you need to confidently repair and maintain your Buick Regal.

The 1997-2004 Buick Regal, a mid-size sedan produced during a period of significant change in the automotive industry, presented a compelling blend of comfort, performance, and technology. Building upon the legacy of its predecessors, the Regal aimed to capture a discerning audience seeking a stylish and versatile vehicle. This generation of the Regal was based on the GM W-body platform, sharing its underpinnings with other popular models like the Chevrolet Lumina, Pontiac Grand Prix, and Oldsmobile Intrigue. While the Regal offered a range of powertrain options, including V6 and V8 engines, it was renowned for its smooth handling and comfortable ride, making it well-suited for both daily commutes and long road trips.

Beyond its practical attributes, the 1997-2004 Buick Regal showcased a distinctive design language that reflected the era's trends. Angular lines and sculpted curves defined its exterior, creating a visually striking presence on the road. Inside, the cabin boasted a well-appointed environment with comfortable seating and tasteful interior materials. Technology advancements included features like anti-lock brakes, traction control, and optional power seats, elevating the driving experience and enhancing safety. However, the Regal faced competition from a burgeoning field of mid-size sedans, each vying for a share of the market. As the automotive landscape evolved, the Regal's popularity waned, eventually leading to its discontinuation in 2004. Despite its limited production lifespan, the 1997-2004 Buick Regal continues to hold a place in automotive history, capturing the essence of a bygone era while offering a reliable and comfortable driving experience.