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Author Question: When performing an EGR system test on a vacuum operated EGR valve, how much should intake manifold ... (Read 282 times)

cookcarl

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on: Jun 23, 2018
When performing an EGR system test on a vacuum operated EGR valve, how much should intake manifold vacuum decrease when the EGR valve is opened at fast idle?
 
  A) 14.7 PSI B) 6-8 PSI C) 1-2 in. Hg. D) 6-8 in. Hg.

Question 2

Which of the following are symptoms of a fault in the EGR system?
 
  A) Excessive NOx emissions B) Detonation during acceleration or cruise
  C) Rough idle and stalling D) All of these


owenfalvey

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Reply #1 on: Jun 23, 2018
Answer to Question 1

D

Answer to Question 2

D


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