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Technician a Says That DEF Is Always Evacuated from Lines

Question 6

Multiple Choice

Technician A says that DEF is always evacuated from lines and valves after the vehicle has shut down to prevent DEF from crystalizing and plugging the SCR system. Technician B says that DEF is removed to prevent it from freezing and causing damage. Who is correct?


A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Correct Answer:

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