Chapter 27

Intake manifold gaskets on a V-type engine can fail due to what factor? - Coolant damage - Relative movement between the intake manifold and the cylinder head - Fretting

All of the above

A thermostat can fail in which way? - Stuck partially open - Stuck open - Stuck closed

Any of the above

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

Disposed of properly or recycled

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

Front crankshaft seal

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?

Idle relearn

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.

Propane

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

SAE 0W-20

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

The impeller blades are worn or slipping on the shaft

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

Water pump

A skewed thermostat means it is ________.

Working, but not at the correct temperature