Deck 64: Suspension System Service

Question 1

To test the actuator, squeeze the plastic retainers and lift the motor from the top of the strut.

Answer 1

False

Question 2

Which of the following statements is LEAST-Likely true?

A)Some shock absorbers are electronically controlled to provide a ride that is more firm or more soft than normal.
B)Prior to doing a wheel alignment, the vehicle must be set at regular curb height.
C)When using a hydraulic jack to lift a vehicle, lift by the front crossmember and manufacturer's specified rear lift points in front of the rear tires.
D)When raising a vehicle with an electronically controlled air suspension, most manufacturers do not recommend a frame-contact hoist.

Answer 2

D

Question 3

As a vehicle ages, ____________________ is a normal condition that occurs. The springs lose their ability to keep the vehicle at the correct ride height.

Answer 3

spring sag

Question 4

Occasionally a brake line will need to be removed from a caliper; ____________________ will be required following the strut replacement.

Question 5

If the battery is being charged, the part that should MOST-Likely be in the "off" position if the air suspension switch is on, is the:

A)torsion bar
B)piston rod
C)ignition switch
D)control arm

Question 6

All of the following statements are true EXCEPT:

A)when coil springs have sagged beyond specifications, they are replaced.
B)a few vehicles use torsion bar springs that allow for spring height to be adjusted by tightening a screw against a bracket mounted on one of the torsion bar ends.
C)shock mounts are designed to continually support a vehicle.
D)air shocks or shock absorbers with coil springs around them are designed to be used only for temporary overload conditions.

Question 7

When one damaged shock is found, both shocks on that end of the vehicle (front or rear) are replaced.

Question 8

The most common type of ____ has a shoulder that sticks out of the bottom of the joint about 0.050" when it is new.

A)spool valve
B)suspension system
C)shock absorber
D)wear indicator

Question 9

While having a discussion, Technician A says that the bounce test only checks the first stage of shock absorber operation. Technician B says that failure in the second or third stage valves would be evident from this test. Who is correct?

A)A only
B)B only
C)Neither A nor B
D)Both A and B

Question 10

While having a discussion, Technician A says that bushings should always be lubricated. Technician B says that bushings should not be lubricated. Lubricants attract dirt and can sometimes damage the bushing material. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 11

A tight nut can be removed using an impact wrench, squeezing the trigger rapidly to produce short bursts of power, or by spinning the shaft.

Question 12

____________________ for passenger cars are usually the single stud (bayonet) type or the ring mounting type.

Question 13

A gas-filled shock absorber will expand to its fully extended position if not restrained.

Question 14

The parts that are MOST-Likely directional are:

A)torsion bars
B)bushings
C)leaf springs
D)insulators

Question 15

Which of the following is LEAST-Likely a component of a ball joint taper?

A)Steering knuckle
B)Radial
C)Control arm
D)Castle nut

Question 16

____________________ insulate suspension parts from noise and road shock.

Question 17

A(n) ____________________ ball joint holds the steering knuckle in the correct position and allows it to pivot during bumps and turns.

Question 18

____ problems include broken leaves, spring sag, differences in ride height from side to side, squeaks, worn bushings, and broken center bolts.

A)Ignition switch
B)Leaf spring
C)Strut assembly
D)Coil spring

Question 19

Suspension system problems usually come to light when the customer complains of a noise such as a clunk or squeak, vibration, steering pull, or tire wear.

Question 20

All of the following statements are true EXCEPT:

A)shocks often fail at the same rate.
B)a defective shock absorber can cause a tire to "hop."
C)a leaking shock can be the result of a defective seal or from lowering a vehicle too far.
D)a damaged piston rod on a Macpherson strut causes a leak.This can result from holding the rod with pliers during installation of the top nut.

Question 21

How would you perform a visual inspection of a shock absorber?

Question 22

How would you replace a strut rod bushing?

Question 23

Briefly discuss the most common repair procedure used when a Macpherson strut shock fails.

Question 24

What precautions should you take when replacing stabilizer bar bushings?

Question 25

How would you measure ball joint clearance without a dial indicator?