Online Diesel Mechanic Training Course | Penn Foster Career School

Diesel Mechanics/Heavy Truck Maintenance Training

Why Penn Foster Career School?

  • Regionally & Nationally Accredited
  • Self-Paced
  • Supportive
  • Low monthly payments

Program Overview

We support NATEFPenn Foster Career School's Diesel Mechanics/Heavy Truck Maintenance Training Program will cover everything from basic diesel engine operations to troubleshooting and repair. You can complete this program in as little as seven months, and with Penn Foster Career School you train online - at home or on the go - at a pace that’s right for you. Our Diesel Mechanic training program can help you take the first step toward your future career, includes student discounts from Snap-on and helps you prepare for the National Institute for Automotive Service Excellence (ASE) certification Medium/Heavy Truck diesel engine test.

Unlike some diesel mechanic schools, you don't need previous diesel mechanic experience for this program. Diesel mechanics typically work for an established repair shop, repair and maintain their own rig, or even start their own business.

Curriculum Details

Program Goal and Outcomes

Program Goal

The Diesel Mechanics/Heavy Truck Maintenance Career Diploma program provides students with knowledge of skills ranging from basic diesel engine operations to troubleshooting and repair. Students will learn how to maintain and do repairs on their own trucks, work for a truck fleet or dealership, or start a full- or part-time business.

Program Outcomes

Upon completion of the program, students will be able to:

  • Recognize the role of a diesel repair technician and the many exciting career opportunities available to skilled technicians
  • Identify common tools and shop safety procedures used in the repair of heavy-duty vehicles
  • List the basic operation of a diesel engine and its major components
  • Describe the operation of the cooling and lubrication systems of a typical diesel engine
  • Identify the various procedures used in the inspection and rebuilding of a typical diesel engine
  • Explain the operation of a mechanical fuel injection system, the fuel-delivery system, as well as the properties of the various types of diesel fuels
  • Recognize the basics of electrical and electronic engine control systems
  • Recognize the basic operation and repair of heavy-duty truck steering and suspension systems, along with service and repair of vehicle wheels and tires
  • Identify the operation of hydraulic and pneumatic braking devices and control systems, the interpretation of fault-indication messages, and the troubleshooting of brake system problems
  • Describe the operation and repair procedures for common heavy-duty truck manual transmissions and clutch systems
  • Identify the principles of operation, troubleshooting steps, and repair procedures for the most common types of automatic transmissions used in today's heavy-duty trucks
  • Identify the function and operation of driveline components, troubleshooting procedures, and the tasks required for servicing driveline problems
  • Recognize the function and operation of heating, ventilation, and air conditioning systems used on heavy-duty trucks

Orientation to Diesel Mechanics/Heavy Truck Maintenance

Starting Your Program

Succeed by learning how to use your Penn Foster program.

Objectives:

  • Understand how to use your Student Portal, including your My Homepage and My Courses pages.
  • Access the Penn Foster Community and use it to find answers.
  • Connect with Penn Foster on various social media sites.
Introduction to Diesel Truck Mechanics

Recognize the role of a diesel repair technician and the many exciting career opportunities available to skilled technicians.

Unit 1

Truck Maintenance Fundamentals 1

Know the common tools and shop safety procedures used in the repair of heavy-duty vehicles.

Additional Course Material

Textbook: Diesel Technology

Unit 2

Truck Engines, Part 1

This course is an introduction to diesel engines, introducing the fundamental concepts you’ll need to understand as you begin your studies of diesel mechanics. It discusses the modern trucking industry and the important role truck technicians play in it. This course also gives you a guide to a wide variety of tools that diesel technicians use. It also covers the important topic of safety—including personal safety equipment, workplace hazards, and oxyacetylene safety—which is particularly important to a diesel mechanic.

Unit 3

Truck Engines, Part 2

This course focuses primarily on power produced by a vehicle’s diesel engine. You’ll learn about power formulas and equations, including brake power and indicated power calculations, and engine powertrain components. Finally, you’ll cover the engine feedback assembly.

Unit 4

Fuel Systems

Understand the operation of a mechanical fuel injection system, the fuel-delivery system, as well as the properties of the various types of diesel fuels.

Unit 5

Truck Electronics and Engine Controls

Recognize the basics of electronics and engine control systems.

Unit 6

Truck Maintenance Fundamentals 2

Understand the basic operation of a diesel engine and its major components. Describe the operation of the cooling and lubrication systems of a typical diesel engine.

Additional Course Material

Textbook: Truck and Trailer Systems

Unit 7

Truck Electrical Systems

Learn about the basic theory and repair of the various electrical systems.

Unit 8

Truck HVAC Systems

Recognize the function and operation of heating, ventilation, and air conditioning systems used on heavy-duty trucks.

Unit 9

Tires, Suspension, and Steering

Know the basic operation and repair of heavy-duty truck steering and suspension systems, along with service and repair of vehicle wheels and tires.

Unit 10

Brakes

Understand the operation of hydraulic and pneumatic braking devices and control systems, the interpretation of fault-indication messages, and the troubleshooting of brake system problems.

Unit 11

Drivelines and Transmissions

Describe the operation and repair procedures for common heavy-duty truck manual transmissions and clutch systems. Identify the function and operation of driveline components, troubleshooting procedures, and the tasks required for servicing driveline problems.

Unit 12

Troubleshooting and Repair

Describe troubleshooting, repair, and preventative maintenance practices, including inspections and maintenance programs.

Additional Course Material

Textbook: Diesel Engine Troubleshooting and Repair


Computer Specifications
As you know this is an online academic program. This means you will need high-speed internet access to begin your program. In addition, you will need access to a Microsoft® Windows® based computer running Windows 7® or later or an Apple® Mac® computer running OS X® or later, and an email account to participate in and complete your program.

We reserve the right to change program content and materials when it becomes necessary.
Microsoft, Windows, and Windows XP are trademarks of Microsoft Corporation registered in the United States of America and/or other jurisdictions.
Apple, Mac, and OS X are trademarks of Apple, Inc registered in the United States of America and/or other jurisdictions.

Sample Lesson

To view a Diesel Mechanics sample lesson, click here.

Diesel Mechanics Certification

Course materials are aligned with the National Institute for Automotive Service Excellence (ASE) Certification Exam in order to help you prepare for ASE certification in the Medium/Heavy Duty Trucks discipline.

Snap-on Student Excellence Program

Students enrolled in the Diesel Mechanics/Heavy Truck Maintenance Training Program are eligible to participate in the Snap-on Student Excellence Program. This program allows students in trades and technology education programs to purchase high-quality Snap-on tools at a preferred student discount. Some restrictions may apply for total purchase and quantities of certain items. Click here to see the new Snap-on Catalog.

State Licensing Information

Licensing and/or certification requirements for jobs in this field are not the same in every state and may include educational, testing, and/or experiential requirements beyond those offered by your Penn Foster Program. You should contact the state professional licensing board or similar regulatory body in the state(s) where you plan to work to determine their requirements before enrolling in your Program. Please click here for contact information for state licensing/regulatory boards and certain industry licensing information.

Online Diesel Mechanic Training Course

Diesel mechanics work on engine operations and computerized management systems for trucks and other diesel vehicles. Here are a few qualities that effective diesel mechanics have in common:

  • Detail oriented: It’s important to have a sharp eye and check things twice.
  • Problem solving: Finding the missing piece can be challenging and fun.
  • Persistent: You work until the job is done, and done well.
  • Honest: You are ethical in your work for customers.

The quality of materials and staff at Penn Foster are the highest of the various schools I have attended.

- Bill F., Diesel Mechanics Student

I would like to say that enrolling with Penn Foster Career School was the best choice that I ever made. I would recommend Penn Foster. I just have to say 'Thank You' to Penn Foster for achieving my goal.

- Francisco C., Penn Foster Graduate

My overall experience with Penn Foster was great. You are allowed to go at your own speed, and the school gives encouragement to keep you going. I would recommend Penn Foster.

- James R., Penn Foster Graduate

Your program includes:

  • Customized payment plans with 0% interest
  • Books and learning aids to help you prepare for ASE certification
  • Access to Snap-on Student Excellence Program offering up to a 50% discount on Snap-on products
  • Goal-setting and progress-tracking tools
  • Instructional support from our experienced faculty
  • Access 24/7 to Penn Foster’s online community, plus immediate membership in the Diesel Mechanics/Heavy Truck Maintenance academic group
  • Your personalized online student homepage and learning portal
  • Additional resources such as our online library and career guidance from Career Cruising

Do you recommend any additional resources for students in the Diesel Mechanics Program?

Yes, we recommend several additional online sources that are helpful while you are in the program. A few useful websites include:

What certifications are linked to the Diesel Mechanics program?

The Penn Foster Diesel Mechanics Career Diploma program is designed to help students prepare to sit for the Medium/Heavy Duty Trucks ASE certification exam upon completion of the program.

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