Multiple Choice
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) 1-2 in. Hg.
B) 6-8 in. Hg.
C) 6-8 PSI
D) 14.7 PSI
Correct Answer:
Verified
Correct Answer:
Verified
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