Technician a Says That Some Service Facilities Do Test and Repair

Technician A says that some service facilities do test and repair the hydraulic nozzles used inside injectors because cleaning and rebuilding a nozzle in house is often more economical than replacing it. Technician B says when a problem with an injector is identified by the heavy-duty onboard diagnostics (HD-OBD) system or by using cylinder cutout and contribution testing, injectors are simply replaced with new or rebuilt parts. Who is right?

A) A only"
B) B only"
C) Both A and B
D) Neither A nor B"

Correct Answer:

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