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10 Cards in this Set

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  • Back

engine cranking vacuum should be ____?

2.5 in. Hg or higher

a good reading for a cylinder leakage test would be ____?

all cylinders below 20% leakage

the low oil pressure warning light usually comes on ____?

when oil pressure drops dangerously low (4 to 7 PSI)

all of these procedures that can help a service technician to diagnose engine faults, EXCEPT ____?

answer: fuel level test



procedure to diagnose engine faults: vacuum test, cylinder leakage test, compression test

which of these smoke types indicates excessive fuel being burned in the combustion chamber?

black

most mechanical engine problems are caused by which of these?

overheating

tech A says that the paper test could detect a burned valve. tech B says that the grayish white stain on the engine could be a coolant leak. who is right?

both A and B

two techs are discussing oil leaks. tech A says that an oil leak can be found using a fluorescent dye in with a black light to check for leaks. tech B says a white spray powder can be used to locate oil leaks. who is right?

both A and B

a good engine should produce how much compression during a running (dynamic) compression test at idle?

60-90 PSI

tech A says that a leaking head gasket can be tested for by using a chemical tester. tech B says that a leaking head gasket can be found using an exhaust gas analyzer. who is correct?

both A and B