Diesel Mechanic
Lone Star Fleet Services · Dallas, TX
Mar, 2021 · Present
Diagnose and repair Class 8 tractors powered by Cummins X15 and Paccar MX-13 engines, including fuel systems, turbochargers, and DEF/SCR aftertreatment.
Cut average roadside downtime 22% by tightening PM intervals and stocking high-failure parts kits for regional routes.
Perform DOT annual inspections and document repairs in fleet CMMS; maintain ASE T2–T6 certifications.
Diesel Technician
Red River Truck & Trailer · Fort Worth, TX
Jun, 2018 · Feb, 2021
Overhauled transmissions, differentials, and air-brake systems on vocational dump and refuse trucks, restoring safe and reliable fleet service.
Trained two apprentices on electrical diagnostics using multimeters, wiring diagrams, and OEM scan tools.
Completed inspection reports, parts requests, and repair documentation while meeting shop safety and quality standards.
Apprentice Diesel Mechanic
Gulf Coast Equipment Rentals · Houston, TX
Aug, 2016 · May, 2018
Assisted senior technicians on excavators and generators, supporting safe troubleshooting and timely equipment turnaround.
Completed oil and filter service, lubrication, inspections, and hydraulic hose replacements under documented shop procedures.
Maintained clean work areas, organized service parts, and recorded maintenance findings for rental fleet readiness.