Diagnose cause of any malfunction and perform repairs to manufacturer specifications including but not limited to engines, transmissions and clutches, drive-line, differential, steering and suspension, fuel and ignition system, exhaust systems (including regeneration systems), intake systems, electrical systems, brake systems, HVAC systems and lift-gate hydraulic, mechanical and electrical systems. To provide safe, reliable and cost-efficient vehicles by performing quality preventive maintenance inspections and repairs as well as performing expert diagnosis and repair as required to prevent breakdowns on road, reduce vehicle downtime and improve total fleet reliability.