Auto Upkeep Basic Car Care, Maintenance, and Repair (2nd Edition) Chapter 1 - Introduction and How Cars Wor Auto Upkeep Basic Car Care, Maintenance, and Repair (2nd Edition) Chapter 16 Drivetrain Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Chapter 1 - Introduction and How Cars Wor Fuel for Thought What is the purpose of the drivetrain? What might be the problem if your vehicle hesitates when shifting gears? What types of drivetrain configurations are available? Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Objectives Upon completion of this chapter and activities, you will be able to: Define the purpose of the drivetrain. Identify drivetrain components. Identify and describe different drivetrain systems. Inspect drivetrain systems. Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Transmission Fluid Automatic transmission fluid (ATF) Pinkish-red in color Manual transmission fluid Can be ATF, motor oil, gear oil Changing transmission fluid Change according to the maintenance intervals set by the manufacturer Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Drivetrain Components Gears Engineered in sets to change speed, torque, and direction of travel Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Drivetrain Components Transmissions Manual Automatic Continuously variable (CVT) Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Drivetrain Components Drive Shafts CV shafts Standard drive shafts Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Drivetrain Components U-joint Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Drivetrain Components Differential Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Drivetrain Components Transaxles Commonly on front-wheel drive vehicles, the function of the transmission and differential is engineered into one component called a transaxle. Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Drivetrain Components Clutches A manual transmission uses a clutch disc in conjunction with a pressure plate to allow the operator to shift gears. Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Drivetrain Systems Rear-Wheel Drive (RWD) Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Drivetrain Systems Front-Wheel Drive (FWD) Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Drivetrain Systems Four-Wheel Drive (4WD) Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Drivetrain Systems All-Wheel Drive (AWD) Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Summary Drivetrains transfer power from the engine to the wheels. Gears, transmissions, drive shafts, and differentials are used to transmit the power. Vehicles can be front-, rear-, four-, or all-wheel drive. All-wheel drive vehicles have become popular because they have superior traction on all types of road conditions. Chapter 16 © 2007 Rolling Hills Publishing www.AutoUpkeep.com