Complete Solutions.
Coolant should be tested for ________.
Proper color
Freezing point (temperature)
Specific Gravity
Both b and c - Correct Answer 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 - Correct Answer Both technician a and b
Technician A says that oil should be squirted into all the cylinders before taking a
compression test. Technician B says that if the compression greatly increases when
some oil is squirted in the cylinders, it indicates defective or worn piston rings.
Technician A
Technician B
Both technicians
Neither technician - Correct Answer Technician 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 my be logged. Technician B says that the piston rings
may be worn or defective. Which technician is correct?
, Technician A
Technician B
Both A and B
Neither A nor B - Correct Answer Technician B
Leaking antifreeze can be what color?
Green
Orange
Red
Any of the above - Correct Answer 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 valves during filling
Use premixed coolant
Wear protective gloves - Correct Answer Open bleeder valves during filling
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 - Correct Answer 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