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work on engine issues and do overall maintenance to tractor trailers. work on emissions and anything a tractor or diesel truck needs.

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Summary

Video transcript available at https://www.youtube.com/watch?v=-PcpkHT8xaU.

Quick Facts: Diesel Service Technicians and Mechanics
2022 Median Pay

$54,360 per year
$26.14 per hour

Diesel service technicians and mechanics inspect, repair, and overhaul buses, trucks, or any vehicle with a diesel engine.

Diesel service technicians and mechanics usually work in well-ventilated and sometimes noisy repair shops. They occasionally repair vehicles on roadsides or at worksites. Most diesel technicians work full time, and overtime and evening shifts are common.

Although most diesel service technicians and mechanics learn on the job after a high school education, employers are increasingly preferring applicants who have completed postsecondary training programs in diesel engine repair. In addition, industry certification may be important.

The median annual wage for diesel service technicians and mechanics was $54,360 in May 2022.

Employment of diesel service technicians and mechanics is projected to show little or no change from 2022 to 2032.

Despite limited employment growth, about 24,300 openings for diesel service technicians and mechanics are projected each year, on average, over the decade. Most of those openings are expected to result from the need to replace workers who transfer to different occupations or exit the labor force, such as to retire.

Explore resources for employment and wages by state and area for diesel service technicians and mechanics.

Compare the job duties, education, job growth, and pay of diesel service technicians and mechanics with similar occupations.

Learn more about diesel service technicians and mechanics by visiting additional resources, including O*NET, a source on key characteristics of workers and occupations.

What Diesel Service Technicians and Mechanics Do About this section

Diesel service technicians and mechanics (also known as diesel technicians) inspect, repair, or overhaul buses and trucks, or maintain and repair any type of diesel engine.

Duties

Diesel service technicians and mechanics typically do the following:

Consult with customers, read work orders, and determine work required

Plan work procedures, using technical charts and manuals

Inspect brake systems, steering mechanisms, transmissions, engines, and other parts of vehicles

Follow checklists to ensure that all critical parts are examined

Read and interpret diagnostic test results to identify mechanical problems

Repair or replace malfunctioning components, parts, and other mechanical or electrical equipment

Perform basic care and maintenance, including changing oil, checking fluid levels, and rotating tires

Test-drive vehicles to ensure that they run smoothly

Because of their efficiency and durability, diesel engines have become the standard in powering trucks and buses. Other heavy vehicles and mobile equipment, including bulldozers and cranes, also are powered by diesel engines, as are many commercial boats and some passenger vehicles and pickups.

Diesel technicians make major and minor engine repairs, and work on a vehicle's electrical and exhaust systems to comply with pollution regulations.

Diesel engine maintenance and repair is becoming more complex as engines and other components use more electronic systems to control their operation. For example, fuel injection and engine timing systems rely on microprocessors to maximize fuel efficiency and minimize harmful emissions. In most shops, workers often use hand-held or laptop computers to diagnose problems and adjust engine functions.

Diesel technicians also use a variety of power and machine tools, such as pneumatic wrenches, lathes, grinding machines, and welding equipment. Hand tools, including pliers, sockets and ratchets, and screwdrivers, are commonly used.

Employers typically provide expensive power tools and computerized equipment, but workers generally acquire their own hand tools over time.

Technicians and mechanics who work primarily on automobiles are described in the profile on automotive service technicians and mechanics.

Technicians and mechanics who work primarily on farm equipment, construction vehicles, and railcars, are described in the profile on heavy vehicle and mobile equipment service technicians.

Technicians and mechanics who work primarily on motorboats, motorcycles, and small all-terrain vehicles are described in the small engine mechanics profile.

Diesel service technicians and mechanics held about 291,600 jobs in 2022. The largest employers of diesel service technicians and mechanics were as follows:

Truck transportation

20%

Wholesale trade

15

Automotive repair and maintenance

9

Local government, excluding education and hospitals

9

Rental and leasing services

6

Diesel technicians usually work in well-ventilated and sometimes noisy repair shops. They occasionally repair vehicles on roadsides or at worksites.

Injuries and Illnesses

Diesel service technicians and mechanics often lift heavy parts and tools, handle greasy or dirty equipment, and work in uncomfortable positions. Sprains and cuts are common among these workers. Diesel technicians need to follow some safety precautions when in the workplace.

Work Schedules

Most diesel technicians work full time. Overtime is common, as many repair shops extend their service hours during evenings and weekends. In addition, some truck and bus repair shops provide 24-hour maintenance and repair services.

How to Become a Diesel Service Technician or Mechanic About this section

Although most diesel technicians learn on the job after a high school education, employers are increasingly preferring applicants who have completed postsecondary training programs in diesel engine repair. In addition, obtaining industry certification may be helpful because certification demonstrates a diesel technician's competence and experience.

Education

Most employers require a high school diploma or equivalent. High school or postsecondary courses in automotive repair, electronics, and mathematics provide a strong educational background for a career as a diesel technician.

Some employers prefer to hire workers with postsecondary education in diesel engine repair. Many community colleges and trade and vocational schools offer certificate or degree programs in diesel engine repair.

These degree programs mix classroom instruction with hands-on training and include learning the basics of diesel technology, repair techniques and equipment, and practical exercises. Students also learn how to interpret technical manuals and electronic diagnostic reports.

Training

Diesel technicians who begin working without any postsecondary education are trained extensively on the job. Trainees are assigned basic tasks, such as cleaning parts, checking fuel and oil levels, and driving vehicles in and out of the shop.

After they learn routine maintenance and repair tasks and demonstrate competence, trainees move on to more complicated subjects, such as vehicle diagnostics. This process can take from 3 to 4 years, at which point a trainee is usually considered a journey-level diesel technician.

Over the course of their careers, diesel technicians must learn to use new techniques and equipment. Employers often send experienced technicians to special training classes conducted by manufacturers and vendors to learn about the latest diesel technology.

Licenses, Certifications, and Registrations

Certification from the National Institute for Automotive Service Excellence (ASE) is the standard credential for diesel and other automotive service technicians and mechanics. Although not required, this certification demonstrates a diesel technician's competence and experience to potential employers and clients, and often brings higher pay.

Diesel technicians may be certified in specific repair areas, such as drivetrains, electronic systems, and preventative maintenance and inspection. To earn certification, technicians must have 2 years of work experience and pass one or more ASE exams. To remain certified, diesel technicians must pass a recertification exam every 5 years.

Many diesel technicians are required to have a commercial driver's license so that they may test-drive buses and large trucks.

Important Qualities

Customer-service skills. Diesel technicians frequently discuss automotive problems and necessary repairs with their customers. They must be courteous, good listeners, and ready to answer customers' questions.

Detail oriented. Diesel technicians must be aware of small details when inspecting or repairing engines and components, because mechanical and electronic malfunctions are often due to misalignments and other easy-to-miss causes.

Dexterity. Mechanics need a steady hand and good hand-eye coordination for many tasks, such as disassembling engine parts, connecting or attaching components, and using hand tools.

Mechanical skills. Diesel technicians must be familiar with engine components and systems and know how they interact with each other. They often disassemble major parts for repairs, and they must be able to put them back together properly.

Organizational skills. Diesel technicians must keep workspaces clean and organized in order to maintain safety and accountability for parts.

Physical strength. Diesel technicians often lift heavy parts and tools, such as exhaust system components and pneumatic wrenches.

Troubleshooting skills. Diesel technicians use diagnostic equipment on engine systems and components in order to identify and fix problems in mechanical and electronic systems. They must be familiar with electronic control systems and the appropriate tools needed to fix and maintain them.

Median annual wages, May 2022

The median annual wage for diesel service technicians and mechanics was $54,360 in May 2022. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $37,030, and the highest 10 percent earned more than $78,340.

In May 2022, the median annual wages for diesel service technicians and mechanics in the top industries in which they worked were as follows:

Local government, excluding education and hospitals

$62,940

Wholesale trade

58,750

Automotive repair and maintenance

52,800

Rental and leasing services

50,390

Truck transportation

48,940

Many diesel technicians, especially those employed by truck fleet dealers and repair shops, receive a commission in addition to their base salary.

Most diesel technicians work full time. Overtime is common, as many repair shops extend their service hours during evenings and weekends. In addition, some truck and bus repair shops provide 24-hour maintenance and repair services.

Employment of diesel service technicians and mechanics is projected to show little or no change from 2022 to 2032.

Despite limited employment growth, about 24,300 openings for diesel service technicians and mechanics are projected each year, on average, over the decade. Most of those openings are expected to result from the need to replace workers who transfer to different occupations or exit the labor force, such as to retire.

Employment

As more freight is shipped across the country, additional diesel-powered trucks will be needed to carry freight wherever trains and pipelines are neither available nor economical. In addition, aging vehicles with diesel engines are likely to require more maintenance and repair, supporting the need for diesel technicians.

However, demand for these workers may be reduced as more firms turn away from diesel-powered trucks in favor of electric ones, which require less maintenance and repair. For example, trucks used for short-haul transportation, such as local delivery services, are expected to increasingly be electric.

Occupational Title

SOC Code

Employment, 2022

Projected Employment, 2032

Change, 2022-32

Employment by Industry

Percent

Numeric

Bus and truck mechanics and diesel engine specialists

49-3031

291,600

294,100

1

2,500
Get data

Occupational Employment and Wage Statistics (OEWS)

The Occupational Employment and Wage Statistics (OEWS) program produces employment and wage estimates annually for over 800 occupations. These estimates are available for the nation as a whole, for individual states, and for metropolitan and nonmetropolitan areas. The link(s) below go to OEWS data maps for employment and wages by state and area.

Projections Central

Occupational employment projections are developed for all states by Labor Market Information (LMI) or individual state Employment Projections offices. All state projections data are available at www.projectionscentral.org. Information on this site allows projected employment growth for an occupation to be compared among states or to be compared within one state. In addition, states may produce projections for areas; there are links to each state's websites where these data may be retrieved.

CareerOneStop

CareerOneStop includes hundreds of occupational profiles with data available by state and metro area. There are links in the left-hand side menu to compare occupational employment by state and occupational wages by local area or metro area. There is also a salary info tool to search for wages by zip code.

For more information about careers and education for diesel service technicians and mechanics, visit
Association of Diesel Specialists National Automotive Technicians Education Foundation
For more information about certification, visit
National Institute for Automotive Service Excellence
O*NET
Bus and Truck Mechanics and Diesel Engine Specialists

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Diesel Service Technicians and Mechanics

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Diesel service technicians and mechanics inspect, repair, and overhaul buses, trucks, or any vehicle with a diesel engine.

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typically technicians work in a shop but other times trucks need to be repaired on the road. typically they are dirty by the end of the day and work from 7-5:30.

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typically diesel technicians start out at around $20 an hour and make roughly $40-$50,000 a year. to add on, most technicians get a yearly bonus which can fluctuate depending on the company. benefits also fluctuates depending on the company you work for but most companies have quite good benefits.

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-pierce college in philadelphia
-thaddeus stevens college of technology in lancaster pa
-university of pennsylvania in philadelphia
-university of pittsburgh in pittsburgh
-community college of beaver county in monica pa

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almost all technicians weather it be automotive or diesel technicians go to a trade school to get some knowledge on what they will be doing in that field but something that almost all technicians have is a highschool diploma. other then that just basic knowledge is required for this career.

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2 benefits of this career are the money is good and the hours are pretty good as well.

1 drawback of this career is that the time consuming projects can be frustrating.

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pennsylvania is on the higher side when it comes to diesel technicians because of all the trucking. but the state with the most is texas.