Master Diesel Technician

Tired of just being a number at the dealership? Come work for our team-oriented family! As a subsidiary of Merx Truck and Trailer, North Texas Fleet Services proudly provides top-tier fleet maintenance and repair solutions for light- to medium-duty vehicles and trailers in Garland, Texas. With our mission to minimize downtime and maximize productivity, we have all your fleet service needs covered! We are growing and currently seeking a highly skilled and experienced Master Diesel Technician with specialized expertise in General Motors vehicles. The Master Diesel Technician will be responsible for diagnosing, repairing, and maintaining medium duty and heavy-duty trucks, including General Motors models, to ensure optimal performance and reliability.



·  Perform diagnostics, troubleshooting, and repairs on diesel engines including General Motors, Ford and Dodge.

·  Utilize advanced diagnostic tools and equipment to identify and resolve complex mechanical and electrical issues.

·  Maintain diesel equipment operation by completing inspections and preventive maintenance requirements.

·  Interpret technical manuals, diagrams, and schematics to guide repair and maintenance procedures.

· Communicate with service advisors and customers regarding repairs.

· Occasional service calls

· Other duties as assigned.


· 5 years of experience working on light to medium duty diesel trucks required.

· High school diploma or equivalent; technical training or certification from an accredited diesel mechanic program is preferred.

· Cummins, Chevrolet, Dodge, Ford or General Motors experience preferred.

· In-depth knowledge of diesel engines, electrical systems, and diagnostic tools

· Proficiency in diagnosing and repairing diesel engines, transmissions, electrical systems, and emissions components.

· Strong understanding of diagnostic tools and software used in diesel engine diagnostics.

· Ability to read and interpret technical manuals, wiring diagrams, and diagnostic codes.

· Excellent problem-solving skills and attention to detail in diagnosing and troubleshooting complex issues.

· Effective communication skills, both verbal and written, for interacting with team members and customers.

· Valid driver's license with a clean driving record.

Physical Demands and Working Conditions

 ·  Skills, adeptness, and speed in the use of fingers, hands and/or limbs on repetitive operation of mechanical or electrical repair shop machines and tools.

·  Physical ability to lift and carry objects weighing inexcess of 60 pounds.

·  Move, load or unload material and parts for trucks andtrailers.

·  Push and maneuver heavy objects using carts, dollies, ordumpsters weighing up to 150 pounds.

·  Exposure to noise, dust, cleaning solvents, battery acids, and exhaust fumes while in the shop work area

·  Working within a service garage setting. Ability to calculate simple mathematical equations. Heavy phone usage, talking with customers. Exposure to noise, dust, cleaning solvents, and exhaust fumes.

This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Salary:$33.00 to $42.00 /hour


The technician is paid Flat rate after a 90-day learning curve of how the shop operates.



  • Monday-Friday 7:30am-5:00pm, Some Saturdays

Best shop in Illinois! Very ethical team, no hidden charges and lies. Ask for Filip, he takes care of your issues. They do everything, from paint job to overhaul of engines. Luis is great!
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5 star review

"Great service! Got me in for a water pump replacement on short notice and had me back on the road in a few hours. Very professional staff and a nice clean facility with a comfortable waiting room."

Anthony Cummings

5 star review

"Fast, friendly same day service! Tractor and APU PM, trailer tire change and reefer maintenance in less than 3.5 hours 💪 IG @the_happy_trucker 🚛💨💨"

5 star review

"The best service in Chicago! These guys have real mechanics that know their stuff and they carry a lot of parts for Volvo. Cheap fast, and good service. This is my favorite shop."