I have a 1998 Nissan Altima, everytime i fill up it over flow with out it being filled up to the top. I have to slowly pump the fuel in to the tank so it wont over flow. Is there a way to fix this annoying problem or part that i need to change
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I believe I may be able to help you with the gas spillage you are having when filling the tank. This happened on my 1998 Toyota Camry.
One day, even though I was low on fuel, the attendant had trouble adding gas to my tank. Gas would spill during filling or the nozzle would click off (as though it was full) even though it was not. I had to stand there myself and slowly add gas until the tank was full.
I learned that my car had a thin vent tube that would run from the gas tank to the gas tank opening. As gas is rushing into the tank during filling, the air that is being displaced from the gas tank escapes through this tube. This tube had rusted closed a bit and was restricting the air flow escaping from the tank during pumping causing the problems I described. Once this tube was replaced, my problem was solved!
Hope this helps!
Gas pump nozzles have a device in the end that when gasoline runs back up into it, it turns off the fuel flow."
There's a tiny hole near the bottom of the gas pump nozzle connected to a small tube.
Normally, air flows through that tube while you're filling and the gas keeps flowing as long as you hold down on the trigger. When that hole gets covered by gasoline (when your tank is full), a vacuum forms inside the nozzle and an automatic shutoff switch gets tripped, turning off the flow of gas with a thunk. Next time your fueling up try to reposition the nozzle.
you do not fill it to the top. if you lok at the side of the bottle, there is LOW mark HIGH mark. your level should be between those 2 marks. if you filled it all the way to the top, some will leak out when the car gets hot and then the level will go down when car cools off.
The tank venting system is malfunctioning. There is a hose which runs from the tank filler tube to the evaporative canister which prevents fumes going into the atmosphere. The hose may have a blockage in it or the cannister itself may be blocked preventing air from flowing from the tank as the gas is pumped in.
not so much a common problem as it is just! a problem go to a local salvage yard and buy a new filler neck and install it!! its really simple just take the 4-5 screws out of the top filler housing and take a hose clamp off the vent house underneath and then wiggle/pull REALLY!! hard outwards on the neck till it comes out of the tank
very common problem, esp with high milage, the fuel vent system is plugged, because the charcoal canister has come apart and the particles have traveled thru and plugged the fuel vent valve, what happens is when you add fuel the air in the tank cant vent out as the liquid displaces the air and backs up thru the filler neck, this however can get costly.