ASE H8 Preventive Maintenance & Inspection (Transit Bus) Practice Questions - ASE H8 - Preventive Maintenance & Inspection (Transit Bus) Certification Exam

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On a diesel transit bus PM, the charge-air cooler (CAC) is being inspected. Which finding most directly indicates a CAC problem affecting performance?

Light surface dust on the cooler fins Oil film and pooled oil inside the CAC outlet tube A clean, dry intake hose Normal coolant level in the surge tank

Correct Answer:

Oil film and pooled oil inside the CAC outlet tube

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