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    Medium/Heavy duty truck engines, fuel & computerized management systems
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    Exam 14: Servicing and Maintenance
  5. Question
    When a Highway Diesel Engine DEF Warning Strategy Defaults to Trimback
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When a Highway Diesel Engine DEF Warning Strategy Defaults to Trimback

Question 7

Question 7

Multiple Choice

When a highway diesel engine DEF warning strategy defaults to trimback mode, what should be done?


A) regenerate the DPF
B) drive in a lower gear
C) replace the engine air filter
D) replenish the DEF tank

Correct Answer:

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