Diesel II

I.     Course Prefix/Number: ATA 218

       Course Name: Diesel II

       Credits: 3 (2 lecture; 2 lab)

II.    Prerequisite

ATA 118 with a minimum of 70% passing grade.

III.   Course (Catalog) Description

Course studies fundamentals of light/medium duty vehicles. Topics include; low pressure/high pressure fuel systems, emissions, hydraulic nozzle injector, (HEUI) injector systems, and rail high-pressure injector systems.

IV.   Learning Objectives

After successfully completing this course, the student should be able to:

  1. Maintain, repair, trouble shoot the low pressure fuel system.
  2. Maintain, repair, pressure test, trouble shoot the high pressure fuel system.
  3. Describe the operation of hydraulic nozzle and unit injectors, repair/replace, and perform diagnostic test on the injector system.
  4. Identify/describe different HEUI fuel systems, test, diagnose, perform basic repairs on HEUI systems.
  5. Explain operating principles of common rail fuel injection, inspect, test, diagnose, follow service precautions while servicing the common rail system.
  6. Perform clearance measurements with micrometers, bore gauges plus more on cylinder heads, valve train and internal engine components.
  7. Maintain emission levels by monitoring OBD-II on-board diagnostics through the use of hand held scanners and minor repairs.

V.    Academic Integrity and Student Conduct

Students and employees at Oakton Community College are required to demonstrate academic integrity and follow Oakton's Code of Academic Conduct. This code prohibits:

• cheating,
• plagiarism (turning in work not written by you, or lacking proper citation),
• falsification and fabrication (lying or distorting the truth),
• helping others to cheat,
• unauthorized changes on official documents,
• pretending to be someone else or having someone else pretend to be you,
• making or accepting bribes, special favors, or threats, and
• any other behavior that violates academic integrity.

There are serious consequences to violations of the academic integrity policy. Oakton's policies and procedures provide students a fair hearing if a complaint is made against you. If you are found to have violated the policy, the minimum penalty is failure on the assignment and, a disciplinary record will be established and kept on file in the office of the Vice President for Student Affairs for a period of 3 years.

Please review the Code of Academic Conduct and the Code of Student Conduct, both located online at
www.oakton.edu/studentlife/student-handbook.pdf

VI.   Sequence of Topics

  • Diesel fuel low/high pressure systems 
  • Hydraulic nozzles and unit injectors
  • Hydraulically actuated Electronic unit injector
  • Common rail high-pressure injector systems
  • Diesel Engine Cylinder Block
  • Cylinder Head and Valve Train Mechanics
  • Emissions

VII.  Methods of Instruction

Lectures and audiovisual presentations dealing with the function of components. There will be demonstrations, classroom discussion, small group and individual instruction on disassembly/repair of vehicle and components.


Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

Course may be taught as face-to-face.

Reading: The student will be responsible to read hand outs and textbook materials.

Writing: The student should maintain a notebook of lecture topics for future reference.

IX.   Instructional Materials

Note: Current textbook information for each course and section is available on Oakton's Schedule of Classes.

 To be supplied by instructor if needed: shop manuals, specifications. The students will have access to online Mitchell OnDemand (heavy Duty) and other sites.

X.    Methods of Evaluating Student Progress

Students will be  evaluated by quiz/tests, attendance and lab performance.

90 – 100 A
80 – 89 B
70 – 79 C
60 – 69 D
0 – 59 F

XI.   Other Course Information

Attendance: Student attendance is critical for satisfactory completion of course work. If the student misses 4 classes, this will result in a 10% loss in grade.

Tests: The student shall be responsible for contacting the instructor and making arrangements to make-up any missed scheduled examinations at the convenience of the instructor.



If you have a documented learning, psychological, or physical disability you may be entitled to reasonable academic accommodations or services. To request accommodations or services, contact the Access and Disability Resource Center at the Des Plaines or Skokie campus. All students are expected to fulfill essential course requirements. The College will not waive any essential skill or requirement of a course or degree program.

Oakton Community College is committed to maintaining a campus environment emphasizing the dignity and worth of all members of the community, and complies with all federal and state Title IX requirements.

Resources and support for
  • pregnancy-related and parenting accommodations; and
  • victims of sexual misconduct
can be found at www.oakton.edu/title9/.

Resources and support for LGBTQ+ students can be found at www.oakton.edu/lgbtq.