Question 1

Technician A says an over adjusted starwheel may cause the parking brake to release. Technician B says a misadjusted brake shoe adjuster may prevent the parking brake from applying sufficiently to hold the vehicle. Who is correct?

Accepted Answer

A misadjusted brake shoe adjuster can indeed prevent the parking brake from applying sufficiently to hold the vehicle, making Technician B correct. An over adjusted starwheel would not cause the parking brake to release.

Question 2

Describe the steps involved in diagnosing a potential parking brake problem on manually applied systems.

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Question 3

List some advantages to the electric parking brake system.

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Question 4

Describe the two most common kinds of caliper-actuated parking brakes.

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Question 5

Explain the typical procedure for freeing seized cables.

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Question 6

Technician A says to test a typical parking brake, first gain access to the switch, which is often the hardest part of the job. Technician B says for lever-operated parking brakes, it may be necessary to remove all or part of the center console. Who is correct?

Accepted Answer

Both technicians are correct. Technician A is correct that gaining access to the switch can be challenging in some vehicles. Technician B is correct that for lever-operated parking brakes, it may be necessary to remove all or part of the center console in order to access the brake mechanism.

Question 7

Technician A says a stuck parking brake cable may cause a hard parking brake pedal  with little braking affect. Technician B says a parking brake that holds only one wheel may have a broken equalizer. Who is correct?

Accepted Answer

Technician A is correct because a cable that is stuck can prevent the parking brake from releasing, resulting in a hard pedal feel with little to no braking effect. 
Technician B is also correct because a broken equalizer can cause uneven distribution of brake force, leading to a parking brake that holds only one wheel. Therefore, both technicians are correct.

Question 8

Explain why modern brake cables are coated with nylon or plastic.

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Question 9

Technician A says true electric parking brakes are being introduced today; the first is an extension of the ABS and active brake systems . Technician B says w hen parking, the driver can switch on the parking brakes, and the hydraulic modulator applies fluid pressure to at least the rear wheels . Who is correct?

Accepted Answer

Technician A is correct because true electric parking brakes are indeed an extension of ABS and active brake systems. Technician B is also correct because the driver can activate the parking brakes, and the hydraulic modulator can apply fluid pressure to the rear wheels.

Question 10

Technician A says the control lever for lever-operated brakes is installed between the two front seats. Technician B says the lever-operated parking brakes on some Chevrolet Corvettes are examples of a design in which the lever drops back to the floor after the brakes are applied . Who is correct?

Accepted Answer

Technician A is correct that the control lever for lever-operated brakes is typically installed between the two front seats. Technician B is also correct that some Chevrolet Corvettes have a design in which the lever drops back to the floor after the brakes are applied. Therefore, both technicians are correct.

Question 11

Which of the following is a true statement of parking brakes on a drum brake system?

Accepted Answer

The parking brake strut is a component in drum brake systems that connects the primary shoe to the secondary shoe, ensuring proper application of the parking brake by spreading the shoes apart to engage the drum.

Question 12

Technician A says a sticking parking brake pedal may be caused by weak shoe return springs. Technician B says the parking brake lever may stick because of a damaged brake hose. Who is correct?

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Question 13

Describe the Continental Teves system.

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Question 14

Discuss how the intermediate lever is designed to work.

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Question 15

Name the five major components of the parking brake system.

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Question 16

Electrical parking brakes are being discussed. Technician A says some systems apply a drum-in-hat type brake. Technician B says some systems apply a disc brake. Who is correct?

Accepted Answer

Both technicians are correct. Some electrical parking brake systems use a drum-in-hat type brake, while others use a disc brake.

Question 17

If the rear brakes are to be replaced on a system with integral parking brakes, the calipers have to be "opened" with a scan tool. List the general procedure steps for a VW vehicle .

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Question 18

Technician A says s ome heavy-duty trucks use a separate set of shoes or pads, such as transmission or drive shaft parking brakes, which are called independent parking brakes . Technician B says these brakes lock the drive shaft in place to keep the vehicle from rolling. Who is correct?

Accepted Answer

Both technicians are correct. Independent parking brakes are a separate set of shoes or pads used on heavy-duty trucks for transmission or drive shaft parking. These brakes lock the drive shaft in place to prevent the vehicle from rolling.

Question 19

Each of the following statements about parking brakes is true EXCEPT:

Accepted Answer

The disc parking brake pads are not adjusted by the piston seal. They are either self-adjusting or require manual adjustment. The piston seal is responsible for maintaining brake fluid pressure in the brake caliper.

Question 20

Describe the "press to release" feature on parking brakes.

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Quiz 9: Parking Brakes