Automotive Technology: A Systems Approach - With Manual and Access
6th Edition
ISBN: 9781305513235
Author: ERJAVEC
Publisher: Cengage
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Textbook Question
Chapter 35, Problem 13RQ
On hybrids with a separate cooling system for the inverter and other electronics, what needs to happen if air is trapped in the cooling system?
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What are the benefits of a hybrid HVAC system?
A vehicle is having its water pump replaced.
When the water pump is removed, severe
corrosion is found on the water pump
impeller, and inside the engine. Technician A
states that the radiator cap may be
overpressurizing the system. Technician B
states that the vehicle may have been run
with 100% water in the cooling system for
some time. Who is correct?
Select one:
a. Technician A only
b. Technician B only
c. Both Technicians A and B
d. Neither Technician A nor B
An overheating vehicle is being discussed.
Technician A states that the vehicle may be
overheating because the heater control valve
is stuck closed. Technician B states that the
vehicle may be overheating because the
PCM in not energizing the cooling fan relay.
Who is correct?
Select one:
a. Technician A only
b. Technician B only
c. Both Technicians A and B
d. Neither Technician A nor B
Chapter 35 Solutions
Automotive Technology: A Systems Approach - With Manual and Access
Ch. 35 - What are the basic components of a belt alternator...Ch. 35 - What are the main reasons that a mild hybrid...Ch. 35 - Which of the following statements about the...Ch. 35 - The Prius PHEV offers many advantages over the...Ch. 35 - In a Toyota Prius, what members of the planetary...Ch. 35 - Prob. 6RQCh. 35 - Prob. 7RQCh. 35 - Prob. 8RQCh. 35 - After isolating the high-voltage system, what is...Ch. 35 - How often must insulated linemans gloves be tested...
Ch. 35 - Nearly all hybrids have less powerful engines than...Ch. 35 - What is the purpose of a typical inverter?Ch. 35 - On hybrids with a separate cooling system for the...Ch. 35 - During diagnostics, the DTC P3009 is displayed,...Ch. 35 - Which of the following is the least likely to...Ch. 35 - Prob. 1ASRQCh. 35 - When working on a high-voltage system, it is best...Ch. 35 - Prob. 3ASRQCh. 35 - Technician A says diesel engines can be used in a...Ch. 35 - While discussing working on hybrid vehicles:...Ch. 35 - Prob. 6ASRQCh. 35 - Prob. 7ASRQCh. 35 - Technician A says PVE refrigerant oil is commonly...Ch. 35 - Prob. 9ASRQCh. 35 - Prob. 10ASRQ
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- While performing a cooling system service on a hybrid vehicle; Technician A says it may be necessary to disconnect the electric water pump. Technician B says it may be necessary to disable the high-voltage system before servicing the engine. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardHow do most electronic ignition systems differ? number of spark plugs the use of CMP and CKP sensors number of transistors the use of a distributorarrow_forwardWhile discussing an inoperative blend air door: Technician A says that to check the proper functioning of the ductwork, move the temperature control lever to see if any change at the doors occurs. If it does not, shut off the air conditioner and turn on the heater. Move the temperature control arm again to see if any change occurs. If not, check the cable and the flap door connected to the temperature control lever. Technician B says that in some cases you can reach under the dash to reconnect the cable or free a stuck flap. Who is right? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
- An overheating vehicle is being discussed. Technician A states that the vehicle may be overheating becuase the heater control valve is stuck closed. Technician B states that the vehicle may be overheating because the PCM in not energizing the cooling fan relay. Who is correct?arrow_forwardBelow figure is an air-cooling system for the battery pack. Is this an Active or Passive air-cooling system? What are the main differences between Active and Passive air- cooling system? Cooling Fan Air Intake Air Exhaustarrow_forwardWhile discussing working on hybrid vehicles: Technician A says to make sure that the high- voltage system is shut down and isolated from the vehicle before working near or with any high-voltage component. Technician B says that when working on or near the high-voltage system , even when it is de - powered , always use insulated tools. Who is correct ?arrow_forward
- After isolating the high-voltage system, what is the minimum time you should wait before beginning to work on or around the hybrid system? a. 1 hour b. 30 minutes c. 15 minutes d. 5 minutesarrow_forwardTrue or False? The air bag diagnostic monitor supplies back-up power to the air bag module in the event that the battery or cables are damaged during the accident.arrow_forwardWhile checking for conditions that might cause coolant electrolysis: Technician A places the positive lead of a voltmeter into the coolant and connects the negative lead to a ground. Technician B checks for the presence of voltage in the coolant with the ignition off. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- Just explain the diagram pleasearrow_forwardThe high-side pressure on a system with a cycling clutch and pressure cycling switch is 145 psi, the low-side pressure is 28 psi, and the ambient temperature is 78F. What do these gauge readings indicate? a. The system is undercharged. b. The system is overcharged. c. The system is normal. d. The evaporator pressure regulator is bad.arrow_forwardAn engine overheats in traffic but is fine when driving: Technician A says a faulty thermostat may be the cause. Technician B says the fan clutch could be the cause. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
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