Catalog Description
- Transfer Status
- CSU
- Prerequisite
- AUT 3 (or concurrent enrollment)
- Unit(s)
- 3.00
- Lab: 153.00 Contact hours/0.00 Out of class hours/153.00 Total hours/3.00 Unit(s)
- Total: 153.00 Contact hours/0.00 Out of class hours/153.00 Total hours/3.00 Unit(s)
Course Description: This course enhances skills in diagnosing, testing, and repair procedures of automotive transmissions/transaxles, drive lines and axles. Shop practice includes diagnostics, testing, and repairing of each system.
Objectives
Upon successful completion of this course, the student should be able to:
- Identify the different types of automatic transmissions and transaxles found in today's cars and trucks.
- Correctly identify the procedure then perform a fluid level check on various automatic transmissions.
- Remove, disassemble, reassemble and install a transmission/transaxle using special tools and jigs.
- Describe the operating characteristics of the mechanical and hydraulic systems found in an automatic transmission/transaxle.
- Service an automatic transmission by replacing the filter and doing a fluid exchange using current industry practices.
- Use a scan tool and pressure gauges to measure hydraulic pressures and access transmission related Diagnostic Trouble Codes (DTC's).
- Interpret pressure readings and scan tool data to determine the root cause of transmission failures.
Course Content
Topic Titles / Suggested Time Topic
Lab
| Topics | Lab Hrs |
|---|---|
Transmission identification using Mitchell or All Data and a Vehicle Identification Number (VIN). | 5.00 |
Transmission fluid level check procedures. | 10.00 |
Transmission tear down. | 10.00 |
Transmission power flow through different planetary components. | 30.00 |
Transmission holding clutches and hydraulic operation. | 4.00 |
Transmission turning clutches and hydraulic operation. | 4.00 |
Transmission one way clutch operation. | 3.00 |
Transmission pump types and pressure regulation. | 10.00 |
Valvebody and valve movement during shifts. | 10.00 |
Transmission reassembly. | 10.00 |
On car transmission pressure testing using scan tools and pressure gauges. | 6.00 |
Using a scan tool to retrieve transmission related DTC's. | 6.00 |
Using a scan tool to record transmission related data. | 6.00 |
Using a scan tool to interpret adaptive values. | 6.00 |
Using scan tools and pressure gauges to diagnose transmission related concerns. | 18.00 |
Torque converter operation and transmission/transaxle removal and installation. | 15.00 |
| Total Hours: | 153.00 |
Methods of Instruction
- Class Activities
- Collaborative Group Work
- Demonstrations
- Laboratory Experiments
- Problem-Solving Sessions
Methods of Evaluation
- Demonstration
- Class participation
- Lab Projects
- Final Examination
- Performance Examinations
Examples of Assignments
Reading Assignments
- Using Mitchell or All Data, look up the fluid level check procedure for an assigned vehicle. Be prepared to discuss with your instructor.
- Using the supplied technical manual for the transmission used in lab, interpret the valve sequencing for up-shifts from first to fourth. Be prepared to discuss with your instructor.
Writing Assignments
- After completing the required transmission services, write a story on the repair order in at least 100 words to industry standards and make sure it includes the 3 C's.
- In your workbook, provide a detailed description of the process for flushing the cooler after removing a transmission. Your response must include all steps outlined in Mitchell or Alldata.
Out-of-Class Assignments
- Not applicable.
Recommended Materials of Instruction
Erjavec, J., et al. (2025). Today's Technician: Automatic Transmissions and Transaxles Classroom Manual and Shop Manual. Cengage, 8th. 9780357935040.
Minimum Qualifications
Automotive Technology