Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 47, Problem 10ASRQ
While 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 B
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While discussing steering problems: Technician A says that a “jerky” steering wheel and a “clunking” noise could indicate worn steering column U-joints. Technician B says that lack of assist and a “growling” noise in a fluid-filled steering pump could indicate a hose or pump internal restriction. Who is correct?
Technician 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?
Mom and vibrations
c) Explain why the wheel/tire balancing is necessary.
Chapter 47 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 47 - Describe how a rack and pinion steering, a...Ch. 47 - A power-steering hose transmits fluid under...Ch. 47 - Describe the operation of a power assisted...Ch. 47 - Define the term gearbox ratio.Ch. 47 - What are the benefits of four-wheel steering...Ch. 47 - List the four main components in a parallelogram...Ch. 47 - What is the purpose of the power assisted rack and...Ch. 47 - In a rack and pinion steering system, what...Ch. 47 - The main job of the idler arm is to _______. a....Ch. 47 - Which of the following is true of the steering...
Ch. 47 - Rack and pinion steering —. a. is lighter in...Ch. 47 - If an electrical defect occurs in the electronic...Ch. 47 - Wandering or poor straight-ahead tracking may be...Ch. 47 - A rack and pinion steering gear _____. a. has...Ch. 47 - Which is the least likely cause of hard steering?...Ch. 47 - Technician A says that play in the steering gear...Ch. 47 - Technician A says that adjusting the steering gear...Ch. 47 - An owners concern indicates excessive play in the...Ch. 47 - While discussing steering problems: Technician A...Ch. 47 - While discussing the fail-safe function:...Ch. 47 - Technician A says that electronically controlled...Ch. 47 - A vehicle has continual excessive steering effort,...Ch. 47 - While diagnosing a loose feeling when steering a...Ch. 47 - Prob. 9ASRQCh. 47 - While diagnosing the cause of wheel shimmy:...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Define dynamic and static wheel balance.arrow_forwardWhen adjusting a vehicle to counter the effect of road crown, what is the adjustment would you make-Adjust the left front wheel with slightly less positive caster-Adjust the right front wheel with slightly less positive caster-Adjust the right front wheel with slightly more positive camber-Adjust both front wheels with slight toe-outarrow_forwardTechnician A says that play in the steering gear is the probable cause of a shimmy. Technician B says that it could be loose steering linkage. Who is correct?arrow_forward
- Technician A says that the front bearing assembly locknuts for RWD vehicles are typically heavily torqued to maintain the bearing adjustment. Technician B says that the axle nuts for FWD wheel bearing assembly is often staked in place to maintain its specified torque. Who is correct?arrow_forwardTechnician A says a wheel alignment rack should include rear slip plates. Technician B says a four wheel alignment can be performed on a 2 wheel alignment machine with some extra work. who is correct?arrow_forwardTech A says that the presence of a thrust angle can cause poor directional stability on ice, snow or a wet pavement. Tech B says that it can also increase tire wear because the front wheels fight the rear ones for steering control, Who is correctarrow_forward
- All of these statements about improper wheel balance are true except? a. Dynamic imbalance may cause wheel shimmy. b. Dynamic imbalance may cause steering pull in either direction. c. Static imbalance causes wheel tramp. d. Static imbalance causes rapid wear on suspension components.arrow_forwardTechnician A says that on most vehicles, the wheel/tire assembly is considered sprung weight . Technician B says that low unsprung weight makes the vehicle handle better on irreg ular surfaces. Who is correct?arrow_forwardexplain the concept of the virtual steering axis compared to traditional suspensionarrow_forward
- List the various methods used by traction control systems to eliminate wheel spin.arrow_forwardWhich of the following is a good definition of SAI?a. Forward tilt of the top of the steering knuckleb. Inward tilt of the spindle steering armc. Inward tilt of the top of the ball joint or strutd. Outward tilt of the top of the ball joint or strutarrow_forwardTechnician A says that electronically controlled power-steering systems allow for power assistance even when an engine stalls. technician B says tha an electronic rack and pinion system provides power assistance even when the engine stalls. who is correct?arrow_forward
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