Exam 6: In-Vehicle Engine Service

Technician A says to use lineman's gloves when servicing the high voltage system on hybrid electric vehicles. Technician B says that some hybrid vehicles require high-viscosity engine oil. Which technician is correct?

Hybrid electric vehicles usually require special engine oil of what viscosity?

What can be used to detect a vacuum leak at an intake manifold gasket?

When torquing intake manifold bolts, what is the proper sequence?

Coolant drained from the cooling system when replacing a thermostat or water pump should be ________.

A vehicle has set DTC P0172, indicating a lean exhaust and a vacuum leak is suspected. This can be diagnosed by introducing ________ around the intake manifold gasket.

The engine is attached to the vehicle using ________.

The torque specification for many plastic intake manifolds are in what unit?

On some engines equipped with a timing belt, the belt also may drive the ________.

An intake manifold gasket has been replaced due to a vacuum leak. Which of the following steps uses a scan tool to complete the job?

Intake manifold gaskets on a V-type engine can fail due to what factor?

When changing a timing belt, it is recommended that the ________ also be replaced.

A defective thermostat can cause the powertrain control module (PCM) to set what diagnostic trouble code (DTC)?

Coolant leaking from an intake manifold can evaporate fast enough to leave no trace of a leak.

What is the proper tool used to measure valve clearances?

Some of the wiring under the hood of a late model vehicle is encased in bright orange covering. This indicates a ________.

A water pump can fail provide the proper amount of coolant flow through the cooling system if what has happened?

A technician is preparing to do an oil change on a hybrid vehicle. What special precaution needs to be taken BEFORE performing this service?

Technician A uses a steel gasket scraper on aluminum engine parts. Technician B uses a plastic or wood scraper on aluminum engine parts. Which technician is correct?

Before removing a timing belt what should the technician do?