Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 34, Problem 3MC
Which of the following statements about EVAP systems is not true?
a. If the system is purging vapors from the charcoal canister when the engine is running at high speeds, rough engine operation will occur.
b. Cracked hoses or a canister saturated with gasoline may allow gasoline vapors to escape to the atmosphere, resulting in gasoline odor in and around the vehicle.
c. Rough idle, flooding, and other similar conditions can indicate a saturated canister.
d. A vacuum leak in the system can cause starting and performance problems.
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19. If the main wire (coil) to the distributor and the coil to the switch are broken, replace them and make
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Chapter 34 Solutions
Automotive Technology
Ch. 34 - A rich air-fuel ratio causes HC emissions to...Ch. 34 - What will result from too little EGR flow? And...Ch. 34 - What can result from a charcoal canister that is...Ch. 34 - What happens if a PCV valve is stuck in the open...Ch. 34 - Explain why the I/M 240 and similar tests are...Ch. 34 - How do you test the efficiency of a secondary AIR...Ch. 34 - List five common causes for high HC emissions.Ch. 34 - Describe carbon monoxide (CO) emissions in...Ch. 34 - An EGR valve that does not fully close can cause...Ch. 34 - A restricted catalytic converter can cause all of...
Ch. 34 - Which of the following statements about EVAP...Ch. 34 - As a catalytic converter begins to deteriorate,...Ch. 34 - How much pressure does a typical EVAP pressure...Ch. 34 - Which of the following exhaust gases is typically...Ch. 34 - Prob. 7MCCh. 34 - While discussing the proper way to test a...Ch. 34 - Prob. 2ASRQCh. 34 - While discussing catalytic converter diagnosis:...Ch. 34 - While discussing EGR valve diagnosis: Technician A...Ch. 34 - While discussing EGR valve diagnosis: Technician A...Ch. 34 - When discussing the diagnosis of a positive back...Ch. 34 - While diagnosing a PCV problem: Technician A says...Ch. 34 - Technician A says that the AIR system should pump...Ch. 34 - While discussing PCV system diagnosis: Technician...Ch. 34 - While discussing EVAP testing: Technician A says...
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