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It doesn't. It stops when the tank is full.
Assuming you are asking why the gas nozzle shuts off when the tank is full, I am not an engineer but I would guess that there is some type of pressure sensor in the nozzle that reads back pressure coming from the neck of the vehicle fuel tank and when that pressure reaches a certain point, it shuts the nozzle off.
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∙ 12y ago
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What is a nozzle of a fuel pump?
The nozzle of a fuel pump is the part that you stick into the opening of your gas tank.
Why does the gas nozzle click off while trying to put gas in an empty tank?
Try putting the gas pump nozzle in all the way and then pull it back about 1 inch That's what I have to do to keep the gas pump from kicking out every few seconds
Why your gas gauge nozzle says empty when gas in the car in Malibu 1997 and my car won't start?
fuel pump in tank along with sending unit bad
How much vacuum is created by centrifugal pump during empty out the tank?
If we install centrifugal pump to transfer liquid from tank,after empty out the tank pump is continiously running,then how much vacuum is created in tank?
What is a gasoline pump nozzles?
It is the nozzle you insert into your fuel tank filler neck to pump gasoline into your vehicle.
How do you empty the fuel tank?
Purchase an inexpensive hand pump and pump it out.
Will the fuel pump still turn on if there is no gas in the tank?
The fuel pump will still try to pump fuel even if the tank is empty.
Why can I only pump small amounts of gas at a time into my fuel tank with out it overflowing or the gas pump shutting off as if the tank were full in my 1999 cougar?
pump it slower and pull the nozzle out of tank a little while pumping the gas.
How does a mechanic empty a gasoline tank of a car?
Usually they use an electricfuel pump and pump it out.
Does the fuel tank have to be empty to replace the fuel pump?
NoNo
Would you be liable if you accidentally drove off with a gas pump nozzle still attached to the gas tank?
Yes
What is the recommended level for fuel in a tank for pump efficiency?
anywhere but empty
