Education & Training: Equivalent to completion of the 12th grade, plus EITHER successful completion of all eight (8) levels of the Districts state certified four (4) year Apprentice Training program, as determined by assessment at each level; OR verified completion of an external two (2) year training program in automotive or heavy-duty truck maintenance and repair from an accredited trade or vocational school. Diagnoses, examines, and investigates vehicles to determine causes of defective operation of engines, transmissions, differential units, generators, starters, pumps, air suspension systems, pneumatic systems, passenger lift assemblies, radiators, injectors, clutches, air conditioning systems, and other vehicle components.