ASE Maintenance and Light Repair Full Review

One of the vehicle's brake lights is inoperative. All other lights are functioning normally. Which of the following should be checked first?

• The battery

• The break switch

• The bulb

• The circuit's fuse

A hydroboost brake system has a hard brake pedal and reduced braking performance. Which of the following would result in this condition?

• Aerated brake fluid

• A leaking vaccum check valve

• A faulty vaccum pump

• Aerated power steering fluid

The TPMS warning light goes out after driving the vehicle for several miles. The MOST likely cause of this condition is:

• An out of round tire

• Low tire air pressue

• A weak TPMS sensor battery

• A faulty wheel speed sensor

A rear-wheeel-drive vehicle with an automatic transmission has a vibration that increases with vehicle speed. There is a loud clunk when the transmission is shifted from park to drive or reverse. Which of the following is causing this condition?

• An out of round tire

• An unbalanced driveshaft

• Loose and worn universal joints

• Loose flywheel bolts

An oil filter has ballooned on a four-cylinder engine. Technician A says a stuck closed oil filter bypass valve would cause this swelling. Technician B says a stuck open oil pressure valve would cause this swollen filter. Who is correct?

• Technician A

• Technician B

• Both A and B

• Neither A or B

A technician measures several spots around a brake rotor with an outside micrometer. Technician A says the technician is checking the rotor for thickness variation. Technician B says the technician is checking the rotor for lateral runout. Who is correct?

• Technician A

• Technician B

• Both A or B

• Neither A or B

The brake fluid in an ABS system has become aerated, resulting in a spongy brake pedal. Which of the following has caused this condition?

• Dot 2 brake fluid

• Dot 3 brake fluid

• Dot 4 brake fluid

• Dot 5 brake fluid

Technician A says a stuck open thermostat will affect the engine's performace. Technician B says the thermostat controls the engine's operating temperature. Who is correct?

• Technician A

• Technician B

• Both A and B

• Neither A or B

a halogen bulb is being replaced and a headlight system. Technician a says to handle the bulb added space during installation. Technician be says to wear gloves or use a piece of paper when handling the glass portion of these bulbs. Who is correct?

• Technician A

• Technician B

• Both A and B

• Neither A or B

All of the following are true about testing engine coolant EXCEPT:

• An antifreeze hydrometer indicate's the boiling point

• An antifreeze refractometer displays the percentage of coolant to water

• An antifreeze test strip indicates the coolant's PH balance

• The engine must be brought to operating temperature before testing the coolant's boiling point