ASE Quiz

One of the vehicles' brake lights is an operative. All other lights are functioning normally which of the following should be checked first?

• The battery

• The brake light switch

• The bulb

• The circuit’s fuse

Answer explanation

To fix the issue with the brake lights, start by checking the bulb. If one of the brake lights is not working, it is likely that the bulb needs to be replaced. Make sure to inspect the bulb for any signs of damage or burnout. If the bulb is in good condition, then you can proceed to check other possible causes such as the brake light switch or the circuit's fuse. However, the bulb is the first component to check in this situation.

A hydroboost brake system has a hard brake pedal and reduced breaking performance which of the following would be result in this condition?

• Aerated brake fluid

• A leaking vacuum check valve

• A faulty vacuum pump

• Aerated power steering fluid

Answer explanation

The hard brake pedal and reduced braking performance in a hydroboost brake system can be caused by aerated power steering fluid. This condition occurs when air bubbles are present in the power steering fluid, leading to a loss of hydraulic pressure and decreased braking effectiveness. It is important to address this issue promptly to ensure proper brake function and safety on the road.

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 pressure

• A weak TPMS sensor battery

• A faulty wheel speed sensor

Answer explanation

The TPMS warning light goes out after driving the vehicle for several miles because of low tire air pressure. This condition occurs when the tires have insufficient air, causing the TPMS sensor to detect the low pressure and trigger the warning light. It is important to regularly check and maintain proper tire air pressure to prevent this issue. An out of round tire, a weak TPMS sensor battery, and a faulty wheel speed sensor are not the likely causes of this condition.

A rear wheel 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 drive shaft

• Loose and worn universal joints

• Loose flywheel bolts

Answer explanation

The condition described is likely caused by loose and worn universal joints. These joints connect the driveshaft to the rear axle and can cause vibrations and clunking noises when they are worn or loose. It is important to have these joints inspected and replaced if necessary to prevent further damage to the vehicle's drivetrain.

An oil filter has ballooned on a 4 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&B

• Neither A or B

Answer explanation

A swollen oil filter on a 4 cylinder engine can be caused by a stuck closed oil filter bypass valve. This prevents oil from flowing through the filter, causing it to balloon. Technician A is correct in stating this. Technician B's explanation about a stuck open oil pressure valve causing the swollen filter is incorrect. Therefore, the correct answer is Technician A.

A vehicle's engine is slow cranking the 12 Volt battery passes all test and is in good condition which of the following should the technician test next?

• The starter motor

• The starter circuit

• The battery state of charge

  
  

• The charging system

Answer explanation

To diagnose the slow cranking issue, the technician should test the starter circuit. This circuit includes components like the ignition switch, starter relay, and wiring connections. By testing the starter circuit, the technician can determine if there are any faults or malfunctions that are causing the slow cranking. It is important to check this circuit as it directly affects the starting process of the vehicle's engine. Testing the starter circuit will help identify and resolve any issues related to the slow cranking.

A technician is unable to balance a tire on a vehicle that vibrates at speeds above 40 mph. Each time the tire is spun a weight must be added to a different location on the rim. Which of the following is most likely causing this condition?

• The tires belt is separated

• There is liquid inside the tire

• The TPMS sensor is shifting

• The tires trade is cupped

Answer explanation

The vehicle's vibration at speeds above 40 mph indicates an imbalance in the tire. To correct this, a weight needs to be added to a different location on the rim each time the tire is spun. The most likely cause of this condition is that there is liquid inside the tire. This liquid causes an uneven distribution of weight, leading to the vibration. It is important to address this issue to ensure a smooth and balanced ride.

View the illustration above and choose the correct answer below.

• The item in the illustration protects suspension components from metal to metal contact

• The item in the illustration fits over strut inserts

• Both A&B are correct

• Neither A or B is correct

Answer explanation

The question asks to view the illustration and choose the correct answer. The correct answer is that both options A and B are correct. Option A states that the item in the illustration protects suspension components from metal to metal contact, while option B states that the item fits over strut inserts. The explanation highlights that both options A and B are correct without mentioning the option number. It is important to note that the explanation should not exceed 75 words and should be in English.

There is a clunking and popping sound coming from the front of the vehicle that only occurs when turning. Which of the following is causing this condition?

• Loose rod ends

• A faulty power steering pump

• Weak coil Springs

• Worn brake pads

Answer explanation

The clunking and popping sound coming from the front of the vehicle when turning is likely caused by loose rod ends. This condition can occur due to wear and tear over time. It is important to address this issue promptly to ensure proper functioning of the vehicle's steering system. The other options, such as a faulty power steering pump, weak coil springs, or worn brake pads, are not likely to cause this specific condition. Please note that loose rod ends can be diagnosed and repaired by a qualified mechanic.

A FWD vehicle drifts to the left at all speeds. Technician A says a misaligned engine cradle results in this condition. Technician B says loose motor Mount results in this drift. Who is correct?

• Technician A

• Technician B

• Technician A and B

• Neither Technician

Answer explanation

The vehicle drifting to the left at all speeds can be attributed to a misaligned engine cradle, as stated by Technician A. Loose motor mounts, as suggested by Technician B, do not cause this drift. Therefore, Technician A is correct in this scenario. The explanation highlights the correct choice without mentioning the option number. It is important to note that the given query has a question about the cause of the leftward drift in a FWD vehicle.