200+ Free ASE A2 Practice Questions

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Question 1

Score: 0/0

A vehicle exhibits a vibration at low speeds and at idle when in gear, but the vibration disappears when shifted to Neutral. What is the most likely cause?

Worn engine mounts

Faulty torque converter

Worn U-joints

Imbalanced tires

to track

2026 Statistics

Key Facts: ASE A2 Exam

Scored Questions

ASE A2 Exam

75 min

Time Limit

ASE

~70%

Passing Score

ASE

$47

Exam Fee

ASE (plus $34 registration)

5 years

Certification Valid

ASE

50%

General Diagnosis

Largest content area

The ASE A2 Automatic Transmission/Transaxle exam has 50 scored questions plus 10 research questions, with a 75-minute time limit. The exam covers 3 content areas: General Transmission/Transaxle Diagnosis (50%), In-Vehicle Transmission/Transaxle Maintenance and Repair (30%), and Off-Vehicle Transmission/Transaxle Repair (20%). ASE certifications are valid for 5 years and are recognized throughout the automotive industry.

Sample ASE A2 Practice Questions

Try these sample questions to test your ASE A2 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.

1A vehicle exhibits a vibration at low speeds and at idle when in gear, but the vibration disappears when shifted to Neutral. What is the most likely cause?

A.Worn engine mounts

B.Faulty torque converter

C.Worn U-joints

D.Imbalanced tires

Explanation: A vibration that occurs in Drive or Reverse but disappears in Neutral is typically caused by a faulty torque converter. The torque converter is mechanically connected to the engine when in gear, so any imbalance or internal failure in the converter will transmit vibration to the vehicle. Engine mounts could also cause vibration, but the specific symptom of changing when shifted to Neutral points to the torque converter.

2During a stall test, the engine RPM is below specification. What does this indicate?

A.The torque converter stator is functioning properly

B.The engine is producing less power than normal

C.There is a mechanical failure in the transmission preventing the engine from reaching full RPM

D.The torque converter clutch is slipping

Explanation: A below-specification stall RPM during a stall test indicates a mechanical problem in the transmission that is preventing the engine from reaching its full stall speed. This could be caused by a worn stator clutch, internal slippage in the torque converter, or mechanical binding in the transmission. A properly functioning torque converter with good engine power should reach the specified stall RPM range.

3What is the function of the stator in a torque converter?

A.To lock the torque converter at highway speeds

B.To redirect fluid flow from the turbine back to the impeller and multiply torque

C.To cool the transmission fluid

D.To connect the engine to the transmission

Explanation: The stator redirects the flow of transmission fluid from the turbine back to the impeller, creating a torque multiplication effect at low speeds. The stator is mounted on a one-way clutch that allows it to freewheel when the turbine reaches approximately 90% of impeller speed, eliminating torque multiplication at higher speeds. This design provides strong acceleration from a stop while maintaining efficiency at cruising speeds.

4A vehicle exhibits a shudder or vibration at approximately 45-55 mph under light acceleration. The condition disappears during heavy acceleration or when the torque converter clutch is disabled. What is the most likely cause?

A.Worn engine mounts

B.Faulty torque converter clutch (TCC)

C.Low transmission fluid level

D.Worn universal joints

Explanation: A shudder or vibration that occurs at highway speeds under light acceleration, but disappears during heavy acceleration or when the TCC is disabled, is characteristic of a faulty torque converter clutch. When the TCC applies, it creates a direct mechanical connection between the engine and transmission. If the clutch surface is worn or damaged, it will slip and cause a shudder under light load conditions.

5Technician A says that the torque converter clutch should be fully applied at idle to prevent slippage. Technician B says the torque converter clutch should only be applied at cruising speeds to eliminate slip and improve fuel economy. Who is right?

A.A only

B.B only

C.Both A and B

D.Neither A nor B

Explanation: Technician B is correct. The torque converter clutch (TCC) should only be applied at cruising speeds when the vehicle is in high gear and at steady throttle. Applying the TCC at idle or low speeds would cause the engine to stall or run rough because the torque converter needs to slip to allow the engine to idle while the vehicle is stopped. The TCC improves fuel economy by eliminating converter slippage during steady-state cruising.

6In a simple planetary gear set, which component must be held stationary to achieve reverse gear?

A.The sun gear

B.The planet carrier

C.The ring gear

D.Any of the above can be held to achieve reverse

Explanation: To achieve reverse gear in a simple planetary gear set, the planet carrier must be held stationary. When the sun gear is the input and the ring gear is the output with the carrier held, the output rotates in the opposite direction from the input, creating reverse. The gear ratio in this configuration is typically around 2.2:1 to 2.5:1, depending on the specific design.

7A technician is diagnosing a transmission that has no reverse but all forward gears work normally. Which component is MOST likely at fault?

A.Forward clutch

B.Low/reverse band or clutch

C.Overdrive band

D.Direct clutch

Explanation: If a transmission has all forward gears working normally but no reverse, the problem is likely in the low/reverse band or clutch that is specifically used to achieve reverse gear. Since forward gears work, the main hydraulic pump and most clutch packs are functioning. The component that is unique to reverse gear operation should be the focus of diagnosis.

8What is the gear ratio in a planetary gear set when the sun gear is held stationary, the planet carrier is the input, and the ring gear is the output?

A.Overdrive (less than 1:1)

B.Direct drive (1:1)

C.Reduction (approximately 1.5:1 to 2.0:1)

D.Reverse

Explanation: When the sun gear is held stationary, the planet carrier is the input, and the ring gear is the output, the gear ratio is overdrive (typically 0.7:1 to 0.8:1). This is because the ring gear has more teeth than the planet carrier input, resulting in increased output speed but reduced torque. This configuration is commonly used for overdrive gears in automatic transmissions.

9A transmission has a whining noise that increases in pitch with vehicle speed in all gears including Neutral. What is the most likely cause?

A.Worn planetary gear set

B.Faulty torque converter

C.Worn output shaft bearings

D.Front pump noise

Explanation: A whining noise that increases with vehicle speed in all gears including Neutral is most likely caused by worn output shaft bearings. Since the noise occurs in Neutral and all gears, it indicates a problem with components that rotate whenever the vehicle is moving, regardless of which gear is selected. Output shaft bearings fit this description, as they rotate whenever the driveshaft or axles are turning.

10What is the primary function of the transmission oil pump?

A.To cool the transmission

B.To provide hydraulic pressure for clutch and band application

C.To lubricate the torque converter only

D.To filter contaminants from the fluid

Explanation: The primary function of the transmission oil pump is to provide hydraulic pressure for clutch and band application. The pump generates the pressure needed to engage the various friction elements that create the different gear ratios. Additionally, the pump provides fluid for torque converter operation and lubrication of internal components, but its main purpose is to create the hydraulic pressure necessary for transmission operation.

About the ASE A2 Exam

The ASE A2 Automatic Transmission/Transaxle certification tests knowledge of transmission diagnosis, in-vehicle maintenance and repair, and off-vehicle repair. Topics include torque converters, planetary gear sets, hydraulic systems, electronic controls, transmission service, and rebuild procedures. Passing this exam earns you the A2 certification, part of the ASE Master Automobile Technician credential.

Questions

50 scored questions

Time Limit

75 minutes

Passing Score

~70%

Exam Fee

$47 (exam) + $34 (registration) (National Institute for Automotive Service Excellence (ASE))

ASE A2 Exam Content Outline

50%

General Transmission/Transaxle Diagnosis

Transmission noises, fluid analysis, mechanical/hydraulic systems diagnosis, electronic systems diagnosis, torque converter diagnosis, gear ratio tests, road test procedures

30%

In-Vehicle Maintenance and Repair

Fluid and filter service, transmission adjustments, linkage adjustments, cooler service, external seal replacement, electrical connector repair, scan tool diagnosis

20%

Off-Vehicle Repair

Transmission removal/installation, disassembly procedures, component inspection, clutch pack service, valve body service, seal and bushing replacement, assembly procedures

How to Pass the ASE A2 Exam

What You Need to Know

Passing score: ~70%
Exam length: 50 questions
Time limit: 75 minutes
Exam fee: $47 (exam) + $34 (registration)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ASE A2 Study Tips from Top Performers

1Master torque converter operation — understand stall speed, stator function, and TCC lockup

2Study planetary gear set operation and power flow through all gear ranges

3Learn hydraulic system fundamentals — pump operation, valve body circuits, and pressure control

4Understand electronic control systems — shift solenoids, sensors, and TCM operation

5Know transmission diagnostic procedures — pressure tests, stall tests, and scan tool data analysis

6Study transmission service procedures — fluid types, filter replacement, and adjustment procedures

7Understand clutch pack and band operation, clearance checks, and apply principles

8Learn transmission removal/installation procedures and safety considerations

Frequently Asked Questions

How hard is the ASE A2 Automatic Transmission exam?

The ASE A2 exam is considered one of the more challenging ASE tests with a 55-65% pass rate. Transmission systems are complex, requiring understanding of mechanical, hydraulic, and electronic systems. Most technicians with 2+ years of transmission experience who study for 40-50 hours pass on their first attempt.

How many questions are on the ASE A2 exam?

The ASE A2 exam has 50 scored multiple-choice questions plus 10 unscored research questions (60 total), with a 75-minute time limit. The research questions are used for future exam development and do not count toward your score. You need approximately 70% to pass.

What experience do I need to take the ASE A2 exam?

ASE recommends 2 years of on-the-job experience in automatic transmission repair before testing. However, you can take the exam without experience. If you pass without meeting experience requirements, you receive certification once you complete the experience. Formal training from an automotive program can substitute for part of the experience requirement.

How do I become an ASE Master Technician?

To become an ASE Master Automobile Technician, you must pass all eight A-series exams: A1 Engine Repair, A2 Automatic Transmission/Transaxle, A3 Manual Drive Train and Axles, A4 Suspension and Steering, A5 Brakes, A6 Electrical/Electronic Systems, A7 Heating and Air Conditioning, and A8 Engine Performance. Certifications are valid for 5 years.

What tools do I need for transmission work?

Transmission work requires specialized tools including: pressure gauges for line pressure tests, scan tool with transmission capabilities, torque wrenches (inch-pound and foot-pound), snap ring pliers, clutch spring compressors, seal installers, and bushing drivers. A transmission jack is essential for removal and installation.