AT 141 - Transmission & Drivetrain Systems

Credits: 12
Variable Credit Course: No

Lecture Hours: 66
Lab Hours: 132
Worksite/Clinical Hours: 0
Other Hours (LIA/Internships): 0

Course Description: Operation, diagnosis, service & repair of automatic transmissions/transaxles, including principles of planetary power flow and operation of valve body, torque converter, and electronic controls. Operation, diagnosis, service & repair of manual transmissions/transaxles, clutches and differentials. Perform diagnosis, service and repair on a variety of vehicles.

Prerequisite: AT 133 with a D grade or higher; and concurrent enrollment in AT 201 and WMATH 100.
Meets FQE Requirement: No
Integrative Experience Requirement: No

Student Learning Outcomes

Demonstrate understanding of transmission and drivetrain service hazards and safety by conducting safe practices while working in the lab.
Demonstrate understanding of automatic and manual transmissions, differentials, clutches, torque converters, and other drivetrain system components and their function by correctly identifying components and explaining their operation.
Demonstrate ability to determine appropriate transmission and drivetrain system service by following a systematic diagnostic approach.
Demonstrate ability to diagnose manual transmission problems correctly by performing live-vehicle diagnosis.
Demonstrate ability to diagnose clutch system problems correctly by performing live-vehicle diagnosis.
Demonstrate ability to diagnose driveshaft system problems correctly including U-joints and CV axles by performing live-vehicle diagnosis.
Demonstrate ability to diagnose differential and transfer case system problems correctly by performing live-vehicle diagnosis.
Demonstrate ability to diagnose automatic transmission problems correctly including mechanical, hydraulic and electronic faults by performing live-vehicle diagnosis.
Demonstrate ability to service and repair a variety of transmission and drivetrain systems correctly including manual and automatic transmissions, clutches, differentials and other drivetrain-related systems by performing live-vehicle services and repairs.
Demonstrate ability to rebuild an automatic transmission correctly by following a systematic process and operational testing when completed.

Course Contents

Automatic Transmission Theory and Operation.
Automatic Transmission Fluids, Filters and Seals.
Automatic Transmission Cooling systems.
Automatic transmission service Procedures and Identification.
Lock-Up Torque Converter Theory and Diagnosis.
Planetary Gears and Controls - Power Flows.
Bands Servos and Clutches.
Drivetrain Fundamentals and Safety Procedures.
Hydraulics and Oil Pumps.
Oil Control Circuits, Valves and Pressures.
Road and Pressure Checking.
Transmission/Transaxle R & R.
Manual Transmission Diagnosis and Service Procedures.
Transmission Electronic Controls.
Clutch System Operation, Service and Repair.
Drive Axle Diagnosis, Service and Repair.

Instructional Units: 15