ASE C1 Services/Maintenance Intervals

Question 1

A customer drives mostly 3-mile trips to work, often in sub-freezing weather, and asks which maintenance schedule applies. According to most manufacturers' guidelines, which schedule should the service consultant recommend?

Accepted Answer

The severe service schedule, because frequent short trips in cold weather are a listed severe condition

Answer

Manufacturers list frequent short trips, especially in extreme temperatures, as a severe operating condition. Under those conditions the engine rarely reaches full operating temperature, so moisture and fuel build up in the oil.

Question 2

A technician changes the oil on a vehicle equipped with an oil life monitoring system but does not reset the system. What is the most likely result?

Accepted Answer

The system will keep counting down from the old value and show an early, inaccurate oil change reminder

Answer

Most oil life monitors calculate remaining life from operating conditions and do not sense fresh oil. If the system is not reset, it keeps calculating from the old oil's remaining life.

Question 3

A customer is worried that their new-car warranty will be voided if they have routine oil changes done at an independent shop. What is the most accurate response?

Accepted Answer

Under the Magnuson-Moss Warranty Act, the manufacturer generally cannot deny warranty coverage just because maintenance was done elsewhere, but the customer should keep records and receipts

Answer

The Magnuson-Moss Warranty Act generally prevents manufacturers from making warranty coverage depend on using a specific shop or branded parts. However, the customer should be able to show that the required maintenance was performed.

Question 4

A vehicle's maintenance schedule calls for an oil change every 7,500 miles or 12 months, whichever comes first. The customer has driven 4,200 miles in the 12 months since the last oil change. What should the service consultant tell the customer?

Accepted Answer

The oil change is due now because the time interval has been reached

Answer

With a "whichever comes first" interval, the service is due at whichever limit is reached first. Here, the 12-month limit was reached before 7,500 miles.

Question 5

A customer's vehicle has an interference engine with a timing belt that is past the manufacturer's recommended replacement interval. Which explanation should the consultant give to support replacing it now?

Accepted Answer

If the belt breaks on an interference engine, the valves can hit the pistons and cause major engine damage

Answer

In an interference engine, the valves and pistons share space in the cylinder at different times. If the belt breaks, the valve timing is lost and the valves can be struck by the pistons, often bending valves and causing expensive damage.

ASE C1 Practice Test

ASE C1 Practice Test

ASE C1 Services/Maintenance Intervals