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ASE G1 MLR questions and answers rated A+ 2024/2025
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ASE G1 MLRThe automotive repair process is a 6 step process. What is the last step? - ANSVerify the Repair
A vehicle comes in the shop with an engine noise. What should be done first? - ANSDiscuss the
noise with the customer
A spark ignition engine has a flapping sound near the front. Which of the following could be the
cause? - ANSLoose timing belt
A tight timing belt makes what type of noise? - ANSWhining Sound
An orange colored liquid is found under the front of the engine. What is leaking? - ANScoolant
There is blue fluid beneath the vehicle. The fluid is most likely - ANSWindshield washer fluid
What type of diesel fuel is critical to DEF systems? - ANSUltra low sulfur diesel
The DEF is added at what loation on a light duty diesel powered vehicle? - ANSA fitting near the
fuel door
2 Techs are discussing DEF. A says it is acceptable to add water to the DEF. B says you can
use a refractormeter to measure the density and quality of the DEF. Who is correct? - ANSB
Only
2 Techs are discussing engine coolant. A says a week solution of antifreeze will cause corrosion
build up. B says some manufacturers recommend coolant be changed at specified intervals.
Who is correct? - ANSBoth A and B
When flushing and refilling a cooling system, all of the following steps are necessary, EXCEPT: -
ANSMixing tap water and distilled water
What tool is used to measure engine coolant freeze protection? - ANSHydrometer
Tech A Says to replace the engine coolant thermostat once a year.
Tech B Says the lower radiator hose contains a spring to prevent it from collapsing and causing
a restriction. Who is Right? - ANSB Only
The engine water pump is going to be replaced. Which of the following is done as a part of that
repair process? - ANSDrain the coolant below the water pump level
, The figure shows a belt tensioner with 4 lines, which indicate proper belt tension, wear, or the
need for replacement. Tech A says when a new belt is installed, the three line marks close to
each other should be positioned as shown. Tech B says to always check the onlineservice
information for belt wear indicators. Who is correct? - ANSB Only
Two Technicians are explaining radiator cap service. Tech A says a radiator cap is tested using
a coolant system pressure tester. Tech B says when the cap does not hold enough pressure you
can replace the cap gasket. Who is correct? - ANSA Only
Tech A says you should inspect all types of fan blades for stress fractures. Tech B says if there
are signs of silicone residue at the viscous fan clutch it must be replaced. Who is correct? -
ANSA Only
An engine has an oil leak at the valve cover. The technician has replaced the valve cover gasket
but the oil still leaks out. What is the most likely cause.? - ANSStuck PCV Valve
Two Technicians are describing the replacement of a thermostat. Tech A says the upper hose
should be removed from the thermostat housing neck then you remove the housing to replace
the thermostat. Tech B says on some applications you remove the radiator pressure cap and
install a new thermostat into the top of the radiator. Who is correct? - ANSBoth A and B
Two technicians are discussing an oil change. Tech A says synthetic oils provide a safe way to
exceed the manufactures recommended oil change intervals. Tech B says to consult the online
service information or the owners manual for the correct viscosity and amount of oil. Who is
right? - ANSB only
All of the following are done when checking secondary ignition components during ignition
system maintenance, EXCEPT - ANSDo a voltage drop across coil terminals
The throttle body is being serviced on a fuel injected engine. Tech A says to check for gasoline
at the vacuum port of the fuel-pressure regulator. Tech B says to check for carbon deposits at
the throttle plate. Who is correct? - ANSBoth A and B
Which diagnostic tool plugs into the DLC(Data Link Connector) to allow the technician to read
DTC's (Diagnostic Trouble Codes)? - ANSBoth Scan Tool and Lap top Computer
When replacing an air filter, the technician should: - ANSMake sure dirt does not fall into the
opening
All of the following actions are performed when replacing a fuel filter EXCEPT: - ANSClean the
in-tank fuel strainer
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