Mar 18, 2026  
2025-2026 Catalog SVC 
    
2025-2026 Catalog SVC

DSL 104 - Diesel Drivetrains III


Credits: 13
Variable Credit Course: No

Lecture Hours: 66
Lab Hours: 154
Worksite/Clinical Hours: 0
Other Hours (LIA/Internships): 0

Course Description: Continuation of DSL 103. Theory and repair of manual transmissions, drive axles, differentials, and drivelines. Introduction to automatic transmissions and their electronic control systems, and auto-shift manual transmissions. Theory and service diagnostics of ABS brakes. Theory and servicing of vehicle air-conditioning systems. Preventative maintenance summary. Develop skills regarding teamwork and customer service with a diverse and multicultural population.

Prerequisite: DSL 103 and WMATH 100 with a D or higher or concurrent enrollment.
General Education Requirements:
  • Fulfills Integrate General Education Requirement

Meets FQE Requirement: No
Integrative Experience Requirement: No

Student Learning Outcomes
  1. Correctly install and adjust a Power Take Off (PTO) assembly.
  2. Understand and service manual transmissions and drive axles.
  3. Troubleshoot and repair transmission air systems.
  4. Troubleshoot automatic transmissions and follow diagnostic procedures.
  5. Understand theory and diagnostics of auto-shift manual transmissions.
  6. Work as a team member.
  7. Develop customer service skills in regard to a diverse and multicultural population.
  8. Operate A/C equipment safely and troubleshoot A/C system using gauge set.
  9. Recover, recycle, and recharge refrigerant.

Course Contents
  1. Familiarization and diagnostics of transmission air systems.
  2. Introduction to PTO systems and their service.
  3. Automatic transmission basics, applied hydraulics, and diagnostics.
  4. PM summary.
  5. Manual transmissions.
  6. Drive axles.
  7. Auto-Shift transmissions.
  8. Teamwork.
  9. Diverse and multicultural population.
  10. A/C fundamentals, theory, and applications.


Instructional Units: 16.5