If you were to look down inside the tube the fuel comes out of (be careful not to spray yourself with gas) you'll notice a small tube inside the larger tube. That smaller tube detects pressure. Ordinarily, as fuel passes the tube a small vaccuum is created but when the fuel level reaches the top some fuel is pushed into the smaller tube resulting in a positive pressure. This change shuts off the fuel.
2006-11-02 02:01:10
·
answer #1
·
answered by texaspicker0 3
·
0⤊
0⤋
A backup occurs in the gas hose and it triggers a valve to shut off the pump. All this happens in about an eighth of a second.
2006-11-02 01:53:34
·
answer #2
·
answered by Kelsey B 1
·
3⤊
0⤋
It's magic, no I dont really know that is a good question it must have something to do with pressure or something. I will keep an eye out for a good answer
2006-11-02 01:50:39
·
answer #3
·
answered by Anonymous
·
0⤊
1⤋
there's a little man inside and he pushes the button on the pump to let you know when it is full LOL
2006-11-02 01:49:51
·
answer #4
·
answered by Mary Smith 6
·
0⤊
1⤋
well no point me answeringthis cause Kelsey B got it right.
2006-11-02 01:57:03
·
answer #5
·
answered by Roo 3
·
0⤊
0⤋
flow rate feedback,
2006-11-02 02:05:10
·
answer #6
·
answered by timestamps 6
·
0⤊
0⤋
some of them do, but you shouldn't count on it. it might be dangerous
2006-11-02 01:50:23
·
answer #7
·
answered by gladiatorghost007 3
·
0⤊
0⤋