Steering & Suspension
Hybrid and Electric Vehicles
Fuel
Engine Performance
Brakes
100

Keeps vehicle driving straight, and allows tires to wear evenly (allegedly helps fuel economy as well)

What is an alignment?

100

This battery usually contains only 100-400 volts, depending on the vehicle it is powering.

What is a hybrid vehicle high-voltage battery?

100

Another word for fuel, this describes the chemical makeup of gasoline, diesel, and other liquids powering vehicle engines.

What are hydrocarbons?

100

These sensors are installed in the intake plumbing and measure the total air coming into the engine.

What is a Mass Airflow Sensor (MAF)?

100

The process of "pad-slapping," or installing new brake pads on old rotors, is often less effective or ineffective because of this type of wear on a used brake rotor.

What is glazing?

200

Hold the wheels together to the vehicle and help vehicle turn smoothly.

What are sway bar links?

200

Insulated rubber gloves, leather gloves, face shield, and insulated hook are all examples of what?

What is the required PPE for working on hybrid vehicles?

200

This piece of the fuel system stores fuel vapors, which are then released into the engine when the vehicle is in operation, which stops those vapors from being released into the atmosphere.

What is the charcoal canister?

200

These sensors are installed in a vehicle's intake manifold and can be used instead of a MAF sensor.

What is a Manifold Absolute Pressure sensor?

200

These types of brakes use more than one piston, working in opposition to each other, to slow the vehicle.

What are dual-piston calipers?

300

These suspension components act as brakes for the vehicle's springs, turning their oscillations into heat and noise.

What are shocks (or struts)?

300

This type of high-voltage battery can cover 15-60 miles, depending on the vehicle it is powering.

What is a hybrid battery?

300

This type of engine has two fuel pumps--one in the tank, one on the engine, each putting the gasoline fuel under different levels of pressure.

What is a Gasoline Direct Injection (GDI) engine?

300

This type of sensor's resistance changes based on its temperature.

What is a thermistor?

300

This component can cause a hard brake pedal and very difficult braking if it fails, as well as hiding possible fluid leaks if it doesn't.

What is the vacuum booster?

400

The suspension's control arms are held in place by these rubber or steel space-fillers.

What are bushings?

400

Electric and hybrid vehicles have these components instead of alternators.

What is a DC/DC converter?

400

This valve opens to release fuel vapors from the vehicle's EVAP system and closes when the vehicle wants to run a self-test on the EVAP components, often identified by the rapid clicking noise it makes while in operation.

What is the purge solenoid?

400

This sensor reports to the vehicle's PCM, telling the vehicle how fast it is going and what speed should be displayed on the combination meter's speedometer.

What is the transmission output sensor?

400

This brake system component is responsible for retracting the brake piston when the pedal is released, as well as holding brake fluid inside the caliper where it belongs.

What is the square-cut O-ring?

500

May cause vehicle vibrations and clicking/clunking noises when turning, if it goes bad.

What is a bad CV Axle?

500

This hybrid or electric vehicle component common in older vehicles should be serviced or replaced yearly, or more often if the customer lives in a dusty environment.

What is the battery cooling fan air filter element?

500

This common DTC number indicates a gross leak in the vehicle's EVAP system, often caused by a loose gas cap.

What is a P0455 code?

500

When a vehicle does not use a Mass Airflow Sensor, how does the PCM determine how much fuel to use?

What is Speed Density Calculation?

500

This process must be completed before servicing a modern vehicle with an electronic rear brake, so as not to damage the brake's internal apply ramp.

What is setting service mode?

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