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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

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.

To determine

The incorrect statement about EVAP systems.

Explanation

Evaporative emission control system helps to prevent the leakage of gasoline vapor. This system is the diagnosis for leaks and also its ability to move fuel vapors when commanded by PCM. While diagnosing, if the EVAP system is purging vapors from the charcoal canister when the engine is idling or operating at very low speeds, rough engine operations will occur, especially at high temperatures...

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