IT16 - Engine Service 1

When inspecting an engine that is leaking fluid, what helps determine what system is leaking?

• color of the fluid

• Smell of the fluid

• Neither A nor B

• Both A and B

A customer complains of an oil leak on the garage floor. Technician A says that the valve cover gasket could be the cause. Technician B says the oil pressure sending unit could be the cause. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

Two technicians are discussing a water pump replacement. Technician A says water pumps that need replacing will always show a leak. Technician B says water pump bearings could be noisy, indicating a failure. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

A knocking noise comes from a vehicle’s engine area whenever the engine is idling. When the drive belt is removed, the knocking noise stops. Technician A says the problem is with one of the belt-driven accessories. Technician B says the vehicle needs an engine overhaul. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

Two technicians are discussing engine oil leaks. Technician A says that an oil leak can be found by using an oil dye. Technician B says a tracing powder could be used to find a leak. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

Technician A says coolant should be recovered and recycled per EPA guidelines. Technician B says orange coolant can be removed from the engine and disposed of by pouring down the drain. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

Two technicians are discussing replacing a serpentine belt–driven water pump. Technician A states that valve timing will need to be adjusted during this procedure. Technician B states that the cooling system needs to be drained before removing the water pump. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

Technician A says it is necessary to use a mixture of antifreeze and distilled water for proper cooling system protection. Technician B says that it is acceptable to mix different types of antifreeze in the cooling system. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

A customer complains of a serpentine belt that repeatedly comes off. Technician A states that this could be caused by a misaligned pulley. Technician B states that this could be caused by a worn tensioner. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

A customer complains that the vehicle has a loud rattling noise every morning when first started. Technician A states that the car should be left at the shop overnight to properly verify this concern. Technician B states that the wrong oil filter could cause this concern. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B