Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 31, Problem 7ASRQ
While discussing a high idle speed problem: Technician A says that higher-than-normal idle speed may be caused by low electrical system voltage. Technician B says that higher-than-normal idle speed may be caused by a defective coolant temperature sensor. Who is correct?
a. Technician A
b. Technician B
c. Both A and B
d. Neither A nor B
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Chapter 31 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 31 - List four service precautions for working on the...Ch. 31 - What is indicated by a LTFT reading of 24 percent?Ch. 31 - What is the correct procedure for checking an...Ch. 31 - What is the difference between STFT and LTFT?Ch. 31 - The PCM checks for a closed throttle plate each...Ch. 31 - Which of the following is a likely cause of a lean...Ch. 31 - What problem may result from dirt buildup on an...Ch. 31 - Which of the following would not cause a...Ch. 31 - What is the correct way to test an injector with...Ch. 31 - What is the difference between the pulse width and...
Ch. 31 - How can you use a dual trace scope to make sure...Ch. 31 - What are three possible problems that can allow...Ch. 31 - What is the purpose of having two accelerator...Ch. 31 - What is indicated by a negative LTFT value?Ch. 31 - True or False? The signals from an air-fuel ratio...Ch. 31 - While discussing the causes of...Ch. 31 - While discussing IAC valve diagnosis: Technician A...Ch. 31 - While discussing IAC motor removal, service, and...Ch. 31 - While discussing injector testing: Technician A...Ch. 31 - While discussing airflow sensors: Technician A...Ch. 31 - While discussing scan tool diagnosis of fuel...Ch. 31 - While discussing a high idle speed problem:...Ch. 31 - While discussing the causes of a rich air-fuel...Ch. 31 - While diagnosing an idle speed problem: Technician...Ch. 31 - While looking at fuel trim values: Technician A...
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