Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
6th Edition
ISBN: 9780135257272
Author: James D. Halderman
Publisher: PEARSON
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Chapter 24, Problem 6CQ

Why are the EGR gases cooled before entering the engine on some engines?

  1. a. Cool exhaust gas is more effective at controlling NOx emissions
  2. b. To help prevent the exhaust from slowing down
  3. c. To prevent damage to the intake valve
  4. d. To prevent heating the air-fuel mixture in the cylinder
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