Cooling System

The water pump creates flow.

• True

• False

The thermostat regulates coolant flow to the radiator until it has reached a predetermined temperature within the engine block.

• True

• False

Tech A says that an internally plugged radiator will cause over cooling.

Tech B says that an externally plugged radiator will cause over heating.

Who is correct ?

• Tech A

• Tech B

• Both A and B

• Neither A or B

All coolants are the same, any type can be used in any engine.

• True

• False

A stuck closed thermostat will cause which of the following ?

• Overcooling

• Higher horsepower

• Overheating

• Advanced timing

If a coolant leak is present at the water pump weep hole, it is an indication of:

• Over cooling

• Shaft seal failure

• Low air across the radiator

• High ambient temperature present

Any component being tested must meet manufacturer specs to get a pass or fail from the testing procedure.

• True

• False

This component helps direct air flow moved through the radiator by the engine fan.

• A/C condenssor

• Charge Air Cooler

• Fan shroud

• Fan belt

For optimum engine performance you should remove the factory installed thermostat and run the engine without one installed.

• True

• False

Excessive engine temperature will reduce component clearances.

• True

• False