Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 53, Problem 10ASRQ
Technician A says that some traction control systems eliminate wheel spin by applying the brakes on the driving wheels. Technician B says that some traction control systems eliminate wheel spin by retarding ignition timing and cutting off fuel injection. Who is correct?
- Technician A only
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Chapter 53 Solutions
Automotive Technology
Ch. 53 - What is the primary difference between an...Ch. 53 - Briefly describe the proper steps and testing...Ch. 53 - An ABS modulates brake pressure. What does this...Ch. 53 - Explain the difference between over steer and...Ch. 53 - List the various methods used by traction control...Ch. 53 - Besides indicating ABS faults for some systems,...Ch. 53 - What are the functions of an isolation/dump valve?Ch. 53 - Describe the normal pedal feel when the ABS is...Ch. 53 - Define the difference between an integrated and a...Ch. 53 - Why are the wires leading to some wheel-speed sen...
Ch. 53 - Describe the differences between passive and...Ch. 53 - Which of the following is a true statement? In...Ch. 53 - What is the name for the gas-filled pressure...Ch. 53 - When inspecting wheel-speed sensors, check for all...Ch. 53 - Prob. 4MCCh. 53 - Technician A says that a malfunction of the ABS...Ch. 53 - While road testing a car equipped with an ABS:...Ch. 53 - Technician A says that the accumulator in an ABS...Ch. 53 - Technician A says that it is normal for the amber...Ch. 53 - Technician A says that some antilock brake systems...Ch. 53 - Technician A says that wheel-speed sensors send an...Ch. 53 - Technician A says that an ABS problem can cause...Ch. 53 - Technician A says that each ABS has its own...Ch. 53 - Technician A says engine power may be reduced if...Ch. 53 - Technician A says that some traction control...
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- While discussing pull during braking: Technician A says that this can be caused by one tire being underinflated. Technician B says that a frozen wheel cylinder on one side of the car can cause this. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardWhile diagnosing the cause of wheel shimmy: Technician A says that this problem can be caused by loose wheel bearings. Technician B says that this can be caused by binding steering column U-joints. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhen replacing an air bag module: Technician A says that the steering column clockspring should be maintained in its correct index position at all times. Technician B says that failure to keep the clockspring straight ahead or in the neutral position relative to the steering wheel can cause damage to the enclosure, wiring, or module. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
- Vehicle dynamics during braking are being discussed: Technician A says that the rear of the car rises during braking. Technician B says that the front of the car lowers during braking. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardTechnician A says that it is normal for the amber brake lamp to light when the ABS is activated during braking. Technician B says that it is normal for the red brake lamp to be on whenever the ignition is on and the engine is off. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardTechnician A says that some antilock brake systems use a lateral acceleration sensor in addition to the wheel-speed sensors. Technician B says that traction control systems apply one wheel brake to get the vehicle going in the direction in which it is being steered. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
- A vehicle with a direct TPMS just had all 4 tires replaced, yet the TPMS warning light is on. Technician A says this may be due to the tire tech damaging one of the sensors during tire replacement. Technician B says it may be caused by the tire tech damaging the wheel speed sensor during tire install. Who is correct? Technician A Technician B Both Technician A and B Neither Technician A or Barrow_forwardTechnician A says that on FWD vehicles, the front wheels toe-out while the rear wheels on an independent suspension try to toe-in as the vehicle moves ahead. Technician B says that on RWD vehicles, the front wheels tend to toe-in while the rear wheels toe-out in response to rolling resistance as suspension compliance. Who is correct?arrow_forwardTechnician A says the front wheel bearings on a typical FWD car are sealed and non-adjustable. Technician B says the front wheel bearings on a typical FWD car are greaseable and adjustable. Who is correct?arrow_forward
- Technician a says radial ply tires are more rigid in the sidewall area than bias ply tires. Technician b says the belts in a radial tire restrict tread motion during contact with the road thus improving tread life in traction. who is correctarrow_forwardTechnician A says that each ABS has its own diagnostic procedure involving use of the brake and antilock warning lamps, special testers, breakout boxes, scan tools, troubleshooting charts, and wiring diagrams. Technician B says that ABSs vary in the number of codes they can store and whether they will retain the code in memory when the ignition is turned off. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardBesides indicating ABS faults for some systems, the red brake warning lamp on the instrument panel can indicate failure of the brake system, application of the brake, or low fluid level in the.arrow_forward
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