Ethan Brooks

• Lead maintenance and repair for a 120-unit mixed fleet of Class 8 tractors, trailers, and vocational trucks, sustaining 96% fleet uptime. • Diagnose Cummins, Detroit Diesel, and PACCAR engines using OEM software, electrical test equipment, and systematic root-cause analysis. • Cut average unscheduled-repair turnaround 22% by standardizing inspections, parts staging, and repair documentation. • Perform DOT inspections and corrective work while maintaining OSHA-aligned shop safety and accurate service records. • Coach four technicians on preventive maintenance, hydraulics, air systems, and safe lockout/tagout procedures.

• Serviced and repaired 70+ heavy trucks weekly, completing preventive maintenance and repairs to manufacturer specifications. • Troubleshot engine performance, aftertreatment, air brakes, charging systems, and multiplex electrical faults with 95% first-time diagnostic accuracy. • Improved preventive-maintenance completion rate from 82% to 94% through inspection checklists and fleet-manager communication. • Rebuilt hydraulic components and replaced fuel, cooling, and exhaust-system parts while meeting documented quality standards.

• Supported senior mechanics maintaining a 45-bus transit fleet, completing inspections, lubrication, and scheduled service safely and on time. • Learned diesel engine, brake, suspension, HVAC, and electrical diagnostics while reducing repeat defects through careful repair verification. • Completed 25–30 preventive-maintenance work orders per week and maintained clear parts and service documentation. • Assisted with roadside breakdown response and returned vehicles to service within established safety and reliability procedures.

Completed hands-on coursework in diesel engines, hydraulics, electrical systems, brake systems, and fleet preventive maintenance. ASE certifications: T2 Diesel Engines, T3 Drive Train, T4 Brakes, T5 Suspension and Steering.