ASE S2 Diesel Engines (School Bus) Practice Questions - ASE S2 - Diesel Engines (School Bus) Certification Exam

Access More Questions

A school bus with a Cummins ISB diesel engine cranks normally but will not start, and the technician confirms there is no fuel reaching the high-pressure pump. Which check should be performed FIRST?

Replace the high-pressure common-rail pump Replace all fuel injectors as a set Increase the rail pressure relief valve setting Inspect the low-pressure (lift/transfer) supply circuit and primary fuel filter for restriction

Correct Answer:

Inspect the low-pressure (lift/transfer) supply circuit and primary fuel filter for restriction

Access more questions from this quiz

Continue to ASE S2 Diesel Engines (School Bus) Practice Questions - ASE S2 - Diesel Engines (School Bus) Certification Exam for more practice questions and the full quiz experience.

Access More Questions