ASE G1 Practice Exam

2025 Edition


ASE identifies auto maintenance and light repair as an individual service area (G1). The auto maintenance and light repair service area involves the following components:
 

• Engine Systems
• Automatic Transmissions/ Trans-axels
• Manual Drive Train and Axles
• Suspension and Steering
• Brakes
• Electrical
• HVAC

This free sample ASE G1 Practice Test below consists of 14 questions organized within 7 sections.
 
Tests.com's ASE G1 Practice Test was written by Dr. John Kershaw, an ASE test prep expert: ASE test question developer; ASE Certified Master Technician; ASE Master Truck Technician; and Auto Industry Technical Instructor.  Dr. Kershaw was among the first to receive ASE certification in 1972.  
 
For the complete practice test, flash cards, exam review and testing tips, check out Tests.com's 180 question practice test kit.


1. Two technicians are discussing engine coolant. Technician A says a weak solution of antifreeze may cause corrosion build-up in the cooling system. Technician B says some original equipment manufacturers (OEM) recommend that the coolant be changed at specified intervals. Who is right?
 
2. The engine water pump is going to be replaced. Which of following is done as part of that repair process?
 
3. A CV (constant velocity) joint is being replaced on a front wheel drive vehicle. Which of the following is the proper grease to use with the CV joint?
 
4. Two technicians are describing automatic transmission/transaxle filter maintenance. Technician A says after the filter is replaced, you can simply install the specified amount of transmission fluid. Technician B says you should add enough fluid to read slightly high on the dipstick and start the engine before adding any more fluid. Who is right?
 
5. This question has the word EXCEPT. For this question, look for the choice that would NOT fit the described situation. Read the entire question carefully before choosing your answer. All manual transmissions/transaxles require one of the following lubricants, EXCEPT:
 
6. A RWD (rear wheel drive) transmission has a leaking output shaft seal on a vehicle with 25,000 miles on the odometer. The MOST likely cause for the leakage is:
 
7. A vehicle has a power steering pump noise at idle. Technician A says elongated mounting holes in the power steering pump bracket may be the cause. Technician B says a low fluid level in the reservoir may be the cause. Who is right?
 
8. Steering dampers can be used to reduce excessive __________.
 
9. A motor home with a hydraulic brake booster has a spongy brake pedal feel. Technician A says there may be air in the master cylinder. Technician B says the power steering belt may be slipping. Who is right?
 
10. Which of the following methods is the best way to verify a customer concern related to brake warning light?
 
11. Technician A says the threads and end caps of the adjusters should be lubricated with lithium grease before being installed. Technician B says starwheel adjusters use the same threads for the left and right sides of the vehicle. Who is right?
 
12. When using a digital ammeter, the red lead should be connected to what area of the connector?
 
13. The starter motor on a 6-cylinder engine is being tested for current draw. The current draw was measured at between 160-200 amperes during cranking. Technician A says the starter is defective and should be replaced. Technician B says this is normal current draw for a starter motor for a 6-cylinder engine. Who is right?
 
14. Technician A says refrigerant leaks can be detected by using a black light (infrared) and injecting colored dye into the system and looking for colored stains. Technician B says some OEMs (original equipment manufacturers) install leak check in the refrigerant to help locate leaks. Who is right?
 


 

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