Tech 1 G-1 913

Coolant should be tested for_____

• proper color
• freezing point (temperature)
• Specific gravity
• Both B and C

Two technicians are discussing a compression test. Technician A says that the engine should be cranked over with the pressure gauge installed for "4 puffs." Technician B says that the maximum difference between the highest-reading cylinder and the lowest-reading cylinder should be 20%. Which technician is correct?

• Technician A only
• Technician B only
• Both Technician A and B
• Neither Technician A nor B

Technician A says that oil should be squirted into all of the cylinders before taking a compression test. Technician B says that if the compression greatly increases when some oil is squirted into the cylinders, it indicates defective or worn piston rings. Which technician is correct?

• Technician A only
• Technician B only
• Both Technician A and B
• Neither Technician A nor B

During a cylinder leakage (leak-down) test, air is noticed coming out of the oil fill opening. Technician A says that the oil filter may be clogged. Technician B says that the piston rings may be worn or defective. Which technician is correct?

• Technician A only
• Technician B only
• Both Technician A and B
• Neither Technician A nor B

Leaking antifreeze can be what color?

• Green
• Orange
• Red
• Any of the above

What precautions are needed to be performed to help prevent air from getting trapped in the cooling system when replacing coolant?

• Use the proper antifreeze as specified
• Open bleeder valve(s) during filling
• Use premixed coolant 
• Wear protective gloves

When replacing a water pump, be sure to ______.

• Torque all fasteners to factory specifications
• Use a new gasket/ seal
• Check that the accessory drive belt is properly aligned and adjusted to the proper tension
• All of the above

When using a scan tool to retrieve diagnostic trouble codes (DTCs), the technician should also _____.

• Check monitor status
• Check freeze frame data
• Record any stored DTCs
• All of the above

When replacing an external fuel filter, best practices include______.

• Use the same brand as the original as the replacement filter
• Reuse the filter after cleaning
• Relieve fuel system pressure before removing the fuel line connections
• Tighten fasteners as tight as possible

Before road testing a vehicle to determine if the automatic transmission is performing normally, which should be performed?

• Check for any stored diagnostic trouble codes
• Check the fluid level
• Check the fluid condition and color
• All of the above