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ASE Certified — Medium/Heavy Truck Diesel Engines (T2) — Requirements & Free Practice

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ASE Certified — Medium/Heavy Truck Diesel Engines (T2)

Licensing authority: National Institute for Automotive Service Excellence

Initial by examination
ASE Medium-Heavy Truck Diesel Engines (T2) Certification Test
Work Experience
ASE requires relevant Repair Technician experience, generally two years full-time or equivalent for T1-T8; approved training substitutions may apply. Certification is withheld until experience is fulfilled.

ASE Medium-Heavy Truck Diesel Engines (T2) Certification Test

Exam questions
Total questions: 65; Scored questions: 55; Unscored questions: 10; The total includes the scored and unscored questions.
Examination outline
  • General Engine Diagnosis (21%)
  • Cylinder Head and Valve Train Diagnosis and Repair (7%)
  • Engine Block Diagnosis and Repair (9%)
  • Lubrication and Cooling Systems Diagnosis and Repair (11%)
  • Air Induction and Exhaust Systems Diagnosis and Repair (11%)
  • Fuel System Diagnosis and Repair (29%)
  • Starting and Charging System Diagnosis and Repair (7%)
  • Engine Brakes (5%)
Examination sources