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: Chevrolet GMC Full-size Gas Vans 1968-1996) Exclusions: Does not include 454 engine or diesel engine information, or 1996 Express and Savana 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: V8 and V6 engines Chapter 2: Part B: 6-cylinder inline engines Chapter 2: Part C: General engine overhaul procedures Chapter 3: Cooling, heating and air conditioning systems Chapter 4: Fuel and exhaust systems Chapter 5: Engine electrical systems Chapter 6: Emissions control systems Chapter 7: Part A: Manual transmission Chapter 7: Part B: Automatic transmission Chapter 8: Clutch and driveline Chapter 9: Brakes Chapter 10: Suspension and steering systems Chapter 11: Body Chapter 12: Chassis electrical system Wiring diagrams