Answer :
Final answer:
The fuel pump in most General Motors vehicles runs for about 1 to 2 seconds after the ignition is turned on before the engine is started. This is for priming the engine for ignition. So, the correct anser is C) One to two seconds .
Explanation:
In most General Motors vehicles, when you turn the ignition key to the "on" position (but before actually starting the engine), the fuel pump runs for about 1 to 2 seconds.
This brief operation pressurizes the fuel system in preparation for engine start-up. I
t ensures that there is adequate fuel pressure when you go to start the engine, which is crucial for a smooth ignition and running of the engine.
Once the engine is running, the fuel pump continues to operate to maintain a consistent supply of fuel to the engine.
This short initial activation of the fuel pump is a standard procedure designed to ensure a reliable and efficient start for the engine.
This is a standard feature in many vehicles and not only GM, designed for priming, or preparing the engine for ignition, by sending fuel from the tank to the engine.
After these few seconds, the fuel pump shuts off, awaiting the engine to start and subsequently to maintain continued operation.
So, the correct anser is C) One to two seconds .
Learn more about Fuel Pump Operation here:
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