Each Haynes manual is written for the do-it-yourselfer and provides step-by-step instructions based on a complete disassembly of the vehicle.  This hands-on experience provides the reader with specific and detailed instructions for performing everything from basic maintenance and troubleshooting to a complete engine overhaul.  The models and model years covered in this title are as follows:

• Oldsmobile 98 1985 - 1996
• Oldsmobile Delta 88 1986 - 1991
• Oldsmobile 88 1992 - 1999
• Oldsmobile Regency 1997 - 1998
• Buick Electra FWD 1985 - 1990
• Buick LeSabre 1985 - 2005
• Buick Park Avenue 1991 - 2005
• Pontiac Bonneville 1987 - 2005

Exclusions: Does not include diesel engine, supercharger info, or rear-wheel drive models

This Haynes automotive repair manual includes 700+ photos and the following chapters: 

Introduction
Chapter 1: Tune-up and routine maintenance
Chapter 2: Part A: Engines
Chapter 2: Part B: General overhaul procedures
Chapter 3: Cooling, heating and air conditioning systems
Chapter 4: Fuel and exhaust systems
Chapter 5: Engine electrical systems
Chapter 6: Emissions and engine control systems
Chapter 7: Automatic transaxle
Chapter 8: Driveaxles
Chapter 9: Brakes
Chapter 10: Suspension and steering systems
Chapter 11: Body
Chapter 12: Chassis electrical system
Wiring Diagrams