Category Archives: Diesel Mechanic

Why is Diesel so Special?

You may be wondering what makes diesels so special and why they get their own mechanics.

Diesel engine mechanics service the diesel engines that power many types of vehicles. Diesel engines are everywhere in our country’s buses and trucks and are becoming more prevalent in other vehicles, such as pickups, passenger cars, and other vehicles. Some diesel technicians work with tanks, big rigs, or mining equipment. Typically technicians will perform many kinds of repairs. Working on diesel engines is more difficult than ever as more electronic subsystems are used to control the engine.

Diesel mechanics have to adapt to industry needs and emerging technologies. On-board computers now manage the fuel system and control the engine to limit emissions. New regulations could require mechanics to retrofit engines with new emissions components, such as DPFs and urea injection, to meet emissions regulations. Some of the time, diesel service specialists will use laptops to identify issues and improve engine reliability.

Technicians working for organizations that service their own vehicles spend most of their week performing preventative maintenance. During a typical maintenance appointment, workers use a checklist that includes inspecting tires, turbochargers, brake systems. During a check-up, mechanics fix parts that do not work within spec or swap out pieces that cannot be repaired.

Diesel technicians typically work in a garage, but they occasionally visit vehicles on the road or on the jobsite. Mechanics may be part of a team or be assisted by an apprentice or helper when doing heavy work, such as changing tires. Most people work a typical 40-hour week, but they can work unusual hours, particularly if they are running their own shop. An increasing number of shops have modified their hours to speed repairs and be more convenient for customers. Several truck and bus firms provide maintenance and repair service all day every day.

A diesel mechanic might do a variety of diesel engine repairs. Others specialize in rebuilding engines or in repairing starting systems. Some also repair large diesel powerplants used for generators and other industrial equipment.

A diesel technician should be able to do any number of things on the job. These include checking electrical systems and transmission parts, replacing engine parts, inspecting the engines and detecting malfunctions.

A diesel technician should have adequate written and verbal communication skills.

If you need any more information about diesel mechanics and their job description, I recommend Diesel Mechanic Info at

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