Technician A says that a converter that rattles when tapped with a mallet should be replaced. Technician B says that the root cause of the converter failure should be diagnosed and repaired before a replacement converter is installed. Which technician is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. A rattling converter often indicates internal damage, necessitating replacement (Technician A's point). However, simply replacing the converter without addressing the underlying issue that caused the failure (such as engine misfires or oil contamination) could lead to the new converter failing as well, which is Technician B's point.

Technician a Says That a Converter That Rattles When Tapped