Owen Briggs

Diagnose and repair Class 7–8 tractors, reefers, and trailers across a 120-unit regional freight fleet, prioritizing road calls and safe return-to-service. Cut repeat breakdowns 22% by building inspection checklists, torque-control standards, and root-cause reviews for recurring engine and aftertreatment faults. Complete PM A/B/C services, DPF regeneration, DEF/SCR troubleshooting, brake and suspension repairs, wheel-end work, and electrical diagnostics with OEM scan tools. Coach four apprentice technicians and maintain clear work orders, parts estimates, warranty notes, and DOT inspection readiness.

Serviced Detroit, Cummins, and Paccar diesel platforms for a multi-brand dealership, completing 8–10 repair orders weekly while meeting manufacturer quality and flat-rate targets. Performed engine overhauls, injector and turbocharger replacement, cooling-system repairs, fuel-system diagnostics, and forced DPF/SCR regeneration using OEM service information. Raised first-time fix rate from 84% to 93% by standardizing diagnostic tests, documenting fault-code evidence, and confirming repairs with road tests. Coordinated parts and warranty claims with advisors and trained two new technicians on safe hoist, lifting, and high-voltage auxiliary-system procedures.

Maintained refuse trucks, dump trucks, buses, and utility vehicles for a 180-unit municipal fleet, balancing scheduled PMs with urgent service requests. Improved fleet availability 14% by introducing mileage-based service intervals, fluid-analysis tracking, and weekly backlog reviews with supervisors. Inspected and repaired air brakes, steering, hydraulics, PTO systems, cooling systems, and diesel electrical circuits; supported annual state and safety inspections. Logged labor, parts, and warranty data in FleetFocus and coordinated vendors for machining, tire, and specialized transmission work.

Coursework in diesel engine rebuilds, hydraulics, electrical systems, preventive maintenance, brake systems, and shop safety. Graduated with honors; completed a capstone rebuild of a 6.7L commercial diesel engine.

Master-level certification covering diesel engines, electrical/electronic systems, drive train, brakes, suspension and steering, preventive maintenance, and HVAC for medium/heavy trucks. Maintains current test credentials and safety procedures.

Certified in compliant recovery, recycling, evacuation, leak testing, and refrigerant handling for heavy-duty vehicle HVAC systems; applies environmental and shop safety controls.

Completed training in lockout/tagout, confined spaces, hazardous energy, PPE, fall protection, shop chemicals, fire prevention, and incident reporting for fleet maintenance environments.