Engine Tune Up Questions and Answers Graded A+
The engine vacuum is low but steady
Retarded Timing
The Purpose of catalytic converter
oxidize hc co into c02 and h20
0:21
/
0:30
What vehicles are designed to go into a closed loop operation when
all of the above
Diagram ...
The engine vacuum is low but steady – answer Retarded Timing
The Purpose of catalytic converter - answer oxidize hc co into c02 and h20
What vehicles are designed to go into a closed loop operation when - answer all of the
above
Diagram shows a vacuum hose connected to "p vacuum" this means the hose should
be connected - answer above the throttle plate
If the voltage spike is not high enough on one cylinder, what is the most likely source of
the problem. - answera failed spark plug
wide-open-throttle the power train control module reverts - answeropen loop, rich
mixtures
during a cylinder leakage test air escaping through the throttle body means there is a
leak at - answerthe intake valve
higher than normal oxides of nitrogen (n0x) emissions may be caused by - answerall of
the above
A reading of 8 volts on meter 2 while cranking would indicate - answeran excessive
ground circuit voltage drop
emission control systems are installed on engines to reduce what 3 specific exhaust
products - answerHydrocarbons, carbon monoxide and oxides of nitrogen
You have verified a slow cranking complaint, which of the following should you do next -
answerDetermine the condition of the battery
The Egr System is designed to - answercruise
You are monitoring the tps signed voltage digital volt ohm - answerA smooth voltage
increase to about 4.5 v
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