Disc brakes
Drum brakes
hydraulic concepts
power assist
customer states
100

The term for a vehicles shiny outer layer on used rotors. caused by heat and wear.

what is glazing.

100

This part in a drum brake assembly takes in fluid and pushes the shoes outward.

what is a wheel cylinder.

100

What 3 types of bleeding did we learn about to remove unwanted air from the hydraulic lines.

what are manual/buddy, vacuum, power.

100
This part helps to ensure we have vacuum stored in the booster during low vacuum conditions, or when the car is turned off.

what is a one way vacuum check valve.

100

A car that has a pedal that has to travel too far before it feels resistance may have this very common problem.

What is air in the hydraulic lines

200

If your caliper slide pins are not properly greased, or they are bent or grooved, it may cause what?

The brake pads to apply unevenly. 

200

When a wheel cylinder has a leak, it will usually be noticed as a leak or wet spot on this part

What is the back of the backing plate

200

When bleeding brakes you should generally do it in this order, unless told otherwise by the WSM

Passenger rear,     driver rear,     passenger front,     driver front

200

A hydroboost vehicle with a failed power steering pump would notice difficulty when doing these two things _____________ and ____________.

what is applying the brake pedal, and turning the steering wheel. 
200

A customer with rear drum brakes may have this problem causing a hard to apply pedal.

what is wet or contaminated brake shoes

300

This kind of caliper is identified by having pistons only on one side. i.e. it must move to work, and does not clamp both sides of the pad with hydraulic pistons. 

what is a floating caliper

300

When rebuilding a wheel cylinder, a technician may use this tool to remove small imperfections, burrs, or debris from inside the cylinder

What is a hone.

300

What will the customer notice if we don't do a good job bleeding air from the hydraulic system after brake repairs. 

what is a spongy pedal.

300

This rubber part inside the vacuum booster is a barrier between the side of our booster that always has engine vacuum, and the side we open up to the atmosphere when we want to apply the brakes

What is the diaphragm.
300

A vehicle with a sinking/dropping pedal may have one of these two common causes. 

What is a hydraulic leak, or a faulty master cylinder.

400
This term tells us when we have removed too much material from a rotor, and it must be thrown away instead of reused.

what is discard spec.

400

A Drum may develop wear upon usage. when removing a worn drum, we may have to adjust the shoes back closed together by interacting with this part before we can remove it.

What is the star adjuster wheel.

400

Siliscone grease must always be used near brakes, and never and products containing____________. otherwise it could swell rubber parts and cause dangerous conditions like self appyling brakes, or brakes that won'yt unnaply. 

what is petroleum.

400

a hydroboost vehicle doesn't store vacuum for emerfencies, it stores pressurized fluid with this part.

What is the accumulator.

400

A car with a malfunctioning metering valve, may come in with this complaint. "car nosedives under_________

what is light braking.

500

Reinstalling a rotor without cleaning the hub or back of the rotor will result in this unwanted condition, measured with a dial indicator and causing pedal vibration.

What is runout.

500

When installing new brake shoes, we need to adjust the clearance between the drum and shoes. when the clearance is correct, the drum will do this when you spin it.

what is drag a small amount/ just barely drag
500

a hydraulic system with a leak, or a master cylinder with torn seals will present with this symptom.

What is a sinking pedal. 

500

Aside from engine vacuum, what other methods can be used to assist in the brake pedal application.

What is hydroboost, or a vacuum pump.

500

A vehicles with weak retracting springs, may result in a customer complaining of:

what is grabbing brakes, or brakes that don't want to release after you stop applying them.