Deck 47: Steering Systems

Question 1

A variable steering ratio can normally be found in _____ steering units.

A) manual
B) power
C) both "manual" and "power"
D) neither "manual" nor "power"

Answer 1

B

Question 2

What is the primary purpose of power steering hoses?

A) to lubricate the pump
B) to relieve pressure
C) to transmit pressurized fluid power
D) none of these answers is correct

Answer 2

C

Question 3

The front-wheel suspension design greatly influences steering geometry.

Answer 3

True

Question 4

Worn tie-rod ends can result in ______.

A) scalloped and scuffed tires
B) tire squeal on turns
C) wheel shimmy
D) all answers are correct

Question 5

Rack-and-pinion steering arrangements require two tie-rod linkages.

Question 6

Rack-and-pinion preload can be adjusted by setting the yoke lash.

Question 7

Tire wear patterns are good indicators of steering and suspension problems.

Question 8

Which of the following is NOT a probable cause of wheel shimmy?

A) binding steering column U-joints
B) loose wheel bearings
C) out-of-balance tires
D) loose, worn, or damaged suspension parts

Question 9

Mechanical 4WS is steering angle sensitive. It is NOT sensitive to vehicle road speed.

Question 10

In a rack-and-pinion steering system, the rack is the steering input and drives the pinion in order to move the wheels.

Question 11

Power steering fluid pressure can be measured with a scan tool.

Question 12

The worm gear and the pitman gear are components within a recirculating ball steering gearbox.

Question 13

Lower steering efforts are desirable at highway speeds in order to provide improved road
feel.

Question 14

In a rack-and-pinion steering system, what protects the rack from contamination?

A) the inner tie-rod socket
B) the outer tie-rod socket
C) grommets
D) the bellows boots

Question 15

A sector shaft is used in most rack-and-pinion steering mechanisms.

Question 16

Parallelogram steering arrangements typically use a rack-and-pinion mechanism.

Question 17

The worm and roller steering components are basically the same found in the recirculating ball/ parallelogram system.

Question 18

Since 1968, all steering columns have a collapsible feature that allows the column to fold into itself upon impact.

Question 19

Some tie rod ends use a special bonded ball stud, in which no boot is used.

Question 20

Electronic rack-and-pinion systems use an electric motor to pump the hydraulic fluid through the hoses.

Question 21

Technician A says a worn or damaged idler arm can cause front-end shimmy. Technician B says a worn or damaged idler arm can cause hard steering. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 22

Technician A says some tie-rod ends use a special bonded ball stud, in which no boot is used. Technician B says when checking tie-rod ends, any vertical movement of the tie-rod over 1/8 inch (3 mm) indicates that replacement is necessary. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 23

Technician A says an electronically controlled power steering system provides power assistance when the engine stalls. Technician B says an electronic rack eliminates the hydraulic pump and hoses. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 24

Which of the following is a 4WS production design?

A) mechanical
B) hydraulic
C) electro/hydraulic
D) all answers are correct

Question 25

Quadrasteer steering systems are being discussed. Technician A says at low speeds, the rear wheels turn in the same direction as the front wheels. Technician B says at high speeds, the rear wheels turn in the direction opposite to the front wheels. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 26

Which of the following is NOT part of a parallelogram-type steering linkage?

A) pitman arm
B) idler arm
C) control arm
D) center link

Question 27

Which of the following is true of the integral-piston power steering linkage system?

A) The power cylinder is integrated with the steering gear
B) The power cylinder has four hydraulic lines connected to it
C) The power cylinder is attached to the steering column
D) All answers are correct

Question 28

Technician A says adjusting the steering gear too tightly can cause hard steering. Technician B says adjusting the steering gear too tightly can cause poor returnability. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 29

Rack-and-pinion steering systems are being discussed. Technician A says they require two outer tie-rod ends. Technician B says they do not require inner tie-rod ends. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 30

What component connects the steering gearbox to the steering linkage?

A) idler arm
B) pitman arm
C) steering shaft
D) tie-rod

Question 31

All steering systems have a ______.

A) linkage
B) steering gear
C) steering column and wheel
D) all answers are correct

Question 32

If the center link, idler arm, or pitman arm is NOT mounted at the correct height, toe is unstable and a condition known as _____ is produced.

A) joggle
B) bump steer
C) torque steer
D) excessive scrub radius

Question 33

The main job of the idler arm is to support the _____.

A) left side of the center link
B) right side of the center link
C) pitman arm
D) steering column

Question 34

Technician A uses a torque wrench to measure bearing drag when making steering gear adjustments. Technician B uses a pull scale to determine whether the actual steering force is within specifications. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 35

Rack-and-pinion steering ______.

A) is lighter in weight and has fewer components than parallelogram steering
B) does not provide as much feel for the road as parallelogram steering
C) does not use tie-rods in the same fashion as parallelogram steering
D) all answers are correct

Question 36

Technician A says the parallelogram-type of steering linkage is mounted ahead of the front suspension. Technician B says the parallelogram-type of steering linkage is mounted behind the front suspension. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 37

Power steering systems are being discussed. Technician A says an integral systems has the power cylinder and the control valve located inside the same housing as the steering gear. Technician B says an external piston linkage system has the power cylinder and control valve located externally, between the center link and the frame. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 38

Steering dampers are being discussed. Technician A says a light film of fluid is permissible on the body of the damper near the shaft seal. Technician B says steering dampers can be repaired and refilled. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 39

Wear and looseness in a parallelogram-type steering linkage permits intermittent changes in the toe setting of the front wheels, which can lead to ________.

A) pull to the left or right
B) increased tire wear
C) hard steering
D) all answers are correct

Question 40

Technician A says worn tie-rod ends are the probable cause of a shimmy. Technician B says a shimmy could be caused by a loose power-steering belt. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 41

The power steering pressure on an electronically controlled power steering system is regulated by the vehicle's computer by varying the _____ applied to the pressure control solenoid.

A) frequency
B) resistance
C) duty cycle
D) voltage

Question 42

The weakest part [most likely to fail] in a parallelogram-type steering system is the ______.

A) pitman arm
B) idler arm
C) center link
D) tie rods

Question 43

The only steering linkage parts used in a rack-and-pinion system are the _____.

A) pitman arm
B) tie rods
C) center link
D) idler arm

Question 44

On a parallelogram-type steering linkage, the _____ joins the inner and outer tie-rod ends.

A) adjusting sleeve
B) drag link
C) center link
D) pitman link

Question 45

In a hydroboost system, pressurized power steering fluid is used for both the power steering system and the ______.

A) clutch release mechanism
B) supercharger
C) radiator cooling fan motors
D) power brake booster

Question 46

Active steering systems are being discussed. Technician A says active steering improves vehicle stability by turning the wheels more or less sharply than commanded by the steering wheel. Technician B says the system allows for a variable steering ratio dependent on vehicle speed. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 47

The idler arm should be checked ______.

A) on a frame contact lift
B) on an alignment rack
C) both "on a frame contact lift" and "on an alignment rack"
D) neither "on a frame contact lift" nor "on an alignment rack"

Question 48

Hard steering could be caused by ______.

A) inadequately inflated tires
B) a loose power steering belt
C) restricted power-steering lines or hoses
D) all answers are correct

Question 49

Power steering hoses must be able to withstand pressures up to _____ psi.

A) 500
B) 1,000
C) 1,500
D) 2,500

Question 50

Which of the following is NOT part of a rack-and-pinion steering system?

A) pitman arm
B) idler arm
C) center link
D) all answers are correct

Question 51

Which of the following would NOT cause excessive play in the steering wheel?

A) worn ball joints
B) loose power steering belt
C) worn tie-rod ends
D) damaged or worn steering gear

Question 52

The function of the balls in a recirculating ball-type steering gear is to _____.

A) multiply steering input torque
B) multiply steering output torque
C) reduce friction between the worm shaft and ball nut
D) transfer end thrust to the pitman shaft

Question 53

Nearly all late model vehicles use a single _____ to drive the power steering pump and all other belt-driven components.

A) flat drive belt
B) V-belt
C) serpentine belt
D) multilink metal belt

Question 54

If the center tooth on the sector gear is larger than the teeth on either side, the steering box is a _____ type.

A) constant ratio
B) variable ratio
C) inverse ratio
D) reverse ratio

Question 55

Power rack-and-pinion steering is being discussed. Technician A says the pinion gear functions as the power piston. Technician B says the spool valve is connected to the rack. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 56

The primary sensor input used by an electronically controlled power steering system is the ______.

A) engine coolant temperature [ECT]
B) vehicle speed sensor [VSS]
C) engine RPM [CKP]
D) mass airflow [MAF]

Question 57

An oil leak at the bellows of a rack and pinion could be caused by ______.

A) inner rack seal
B) outer rack seal
C) pinion seal
D) all answers are correct

Question 58

Technician A repairs leaking power steering hoses by cutting out the leaking section and installing a length of double wall 3/8-inch steel tubing with hose clamps. Technician B replaces worn or damaged power steering hoses. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 59

Technician A says most late model vehicles have a power-steering pressure sensor that can be monitored with a scan tool. Technician B says if the system does not have a power steering pressure sensor, you must diagnose the system by connecting a power-steering pressure gauge to the pump outlet. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 60

Breakaway plastic capsules, inserts or steel balls held in a plastic retainers, and collapsible steel mesh [accordion-pleated] devices that give way under pressure allow the _____ to collapse in a collision.

A) parallelogram linkage
B) steering column
C) rack and pinion
D) steering gear

Question 61

What is a steering damper?

Question 62

In an electric steering system the _____ must be recalibrated to its zero point whenever the steering gear, steering wheel, steering column, or steering control module has been removed or replaced.

A) torque sensor
B) clockspring assembly
C) steering wheel
D) pressure control sensor

Question 63

____________________ is the slight rotational oscillations of the steering wheel resulting from the interaction of the tires with the road surface.

Question 64

____________________ is the sensation the driver feels at the steering wheel from the road surface.

Question 65

While checking out the front end of a vehicle, the technician grabs the driver's side tire and steers the wheels manually left and right. While he does this, he notices that the center link moves up and down. What component is most likely at fault?

A) worn tie-rod ends
B) worn center link
C) worn idler arm
D) worn steering U-joint [coupler]

Question 66

Electric power steering systems require a steering input torque sensor to determine how much electric current should be sent to the steering assist motor. This torque sensor uses a small ____________________ that is connected between the steering column and the pinion shaft.

Question 67

Prior to removing the steering wheel on a vehicle equipped with a driver's side air bag, the system must be ____________________.

Question 68

In a rack-and-pinion steering system, the ____________________ performs the task as the center link in a parallelogram-type steering system.

Question 69

The ____________________ arm connects to the frame at the opposite side
of the center link from the pitman arm.

Question 70

Steering dampers are mostly found on vehicles with ____________________ tires.

Question 71

On a parallelogram type steering linkage, ___________________ connect the center link to the steering knuckles.

Question 72

The ____________________ arm connects the center link to the steering gear.

Question 73

In a parallelogram steering linkage, one tie-rod end is attached to the wheel's steering arm and the other end is connected to the _____________________.

Question 74

A technician is checking a car for loose and erratic steering. When an assistant moves the steering wheel left and right, he notices the entire steering rack moving back and forth about one-half inch. He checks the tightness of the rack mounting bolts and finds that they are torqued to specifications. What could be the problem?

A) worn inner tie-rod end
B) worn outer tie-rod end
C) worn steering U-joint [coupler]
D) worn rack mount bushings

Question 75

A pressure ____________________ valve controls the max pressure output from the pump.

Question 76

The center link is often referred to as the ____________________ link.

Question 77

Technician A says a special puller is often required to separate a tie-rod end from the steering knuckle. Technician B says a special puller is required to separate the pitman arm from the pitman shaft. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 78

The ____________________ ball steering gear is used mostly on large cars and light trucks.

Question 79

Which of the following will NOT cause steering wandering?

A) leaking rack pistons
B) poor wheel alignment
C) improper steering gear preload adjustment
D) a faulty power-steering pump

Question 80

Hydraulic fluid for the power steering pump is stored in a(n) ____________________.