ASE Practice Test #2
With an electronically controlled 4-speed automatic transaxle, you feel a “shock” while changing from Neutral to Drive. Which of these needs to be fixed away from the vehicle?
Explanation:
The last three repairs can all be completed on-site. Repairing a forward clutch necessitates off-vehicle work if you experience shock when shifting from the N to D range. You must first remove the front pump in order to access the forward clutch.
You are looking for an air leak inside the cylinder when you run an engine compression test. With the exception of which of the following, you will discover air leaks with this test?
Explanation:
An engine compression test will reveal any air leakage from the cylinder head gasket, piston rings, or either the intake or exhaust valves. It can only detect a leak in certain components, but it can identify a loss through any combination of those components.
What three clutch pedal measures are crucial?
Explanation:
Height, free play, and reserve are all measured for pedals. The clutch ages quickly when there is not enough free play. Apply pressure, operating range, or kickback adjustments are not present.
You want to identify a RWD, electronically controlled, 5-speed automatic transmission that makes an odd noise when in drive using your diagnostic symptom chart. Technician A needs to perform an OFF-vehicle procedure because he thinks the oil pump component may be to blame. It is the control valve, according to Technician B, and it requires an OFF-vehicle procedure. Who is accurate?
Explanation:
Tech A is correct. The oil pump assembly may be the diagnostic component, and replacing it involves working outside of the car. The control valve may be the problem, as Technician B correctly pointed out, but this is not an OFF-vehicle procedure.
When a customer enters, they complain that the exhaust is spewing white smoke. Which system should you examine first for low fluid levels?
Explanation:
Smoke with a blue hue would result from engine oil spilling into the combustion chamber. Brake fluid and transmission fluid would not leak into the engine and exit through the exhaust. When a head gasket fails, coolant can leak into the cylinder and produce white smoke.
What should you do first when diagnosing an engine performance problem?
Explanation:
These are all valid approaches to diagnose problems with engine performance. To find out what the customer is going through, you must nonetheless start by speaking with them. After that, you can use that data to make additional diagnoses.
What would cause the fluid in an automatic transmission to become varnished with a light to dark brown tint as you examine the fluid color?
Explanation:
The only reason on this list that would cause you to notice a light to dark brown tint is oxidation from overfilling or underfilling. The color will be a lighter shade of pink if it has been tainted with water. The hue will be dark brown to black if there is wear from friction material. You'll notice a white, foamy substance in the fluid if the engine coolant is contaminated.
What parts of the valve train have the most potential to significantly increase engine noise?
Explanation:
The valve train contains a large number of tiny moving parts that might produce noise. Only the rocker arms are actually found inside the valvetrain, though, of the answers provided.
A technician A thinks that people still use paper service manuals today. According to technician B, you should always adhere to the suggested service practices listed in online service information. Who is accurate?
Explanation:
Tech A is flawed since the majority of printed manuals are now dated. All of today's OEM data is accessible online. For the recommended repair, you must thus access the processes in the online service information.
What needs to be replaced while maintaining a hydraulic clutch?
Explanation:
Clutch fluid is the only item on this list that needs maintenance. All the other parts are replaceable, but they wouldn't be unless one of them was broken. The clutch linkage can also be adjusted, although that wouldn't be considered maintenance either.
A consumer complains that their engine isn't producing enough power. A sudden transformation occurred. The technician examines the vehicle and discovers that the engine coolant is low and that the exhaust is emitting white smoke. Which of the following explanations is most appropriate?
Explanation:
One of the most frequent types of engine block damage, particularly in big engines and sports cars, is cracks in the cylinder walls. Water pockets may be able to seep coolant into the cylinder through these gaps. Running troubles and a white smoke that emanates from the exhaust can result from this.