Fuel Float Question

[s.green]

Will a faulty fuel float only let you fill up so far? I think that is what is happening, but people say otherwise. For Example: the CB only took 7.7 gallons of gas this morning. I know the tank is bigger than that, but that's where the gas pump stopped.
I've tried explaining it to my husband, but he is stuck on the fact that float isn't big enough to obstruct the flow of the fuel. I'm trying to explain that it's not a flow issue, but another kind of issue.
Thanks for the help!

[C91BLX7]

He is right.

[s.green]

i agree that he is right....

I understand that, but I don't get why it's only allowing 7.7 gallons of gas.

The float is saying that my car is "full" when it's not. When it hits half a tank "it's empty" and the car starts shutting off. Sorry, if I didn't explain it well.

[mtnbikaah]

how many miles are you going per "tank"?

[s.green]

Don't know, the VSS doesn't work. I can go about a week on what it calls "full".

[Leung]

i've never replaced the fuel sending unit in our accords before but maybe the unit is covered in sediment to the point that it only allows the floater to rise to a certain position where it registers full.

I think it can be replaced without having to drop the fuel tank by going through the trunk.

[evil_demon_01]

Will a faulty fuel float only let you fill up so far? For Example: the CB only took 7.7 gallons of gas this morning. I know the tank is bigger than that, but that's where the gas pump stopped.

No the fuel float has nothing to do with filling the tank up.

how many miles are you going per "tank"?

Don't know, the VSS doesn't work. I can go about a week on what it calls "full".

So after a week of driving, full to empty, you only use 7.7 gallons?


#1 - Fix your VSS - If you don't know how far you are travelling to "X" amount of gas, then you can't tell if "7.7 gallons" is correct or not.

#2 - You say the car cuts out when the tanks gets to half way.
Is it actually half way? Or is it empty?

[s.green]

No the fuel float has nothing to do with filling the tank up.





So after a week of driving, full to empty, you only use 7.7 gallons?


#1 - Fix your VSS - If you don't know how far you are travelling to "X" amount of gas, then you can't tell if "7.7 gallons" is correct or not.

#2 - You say the car cuts out when the tanks gets to half way.
Is it actually half way? Or is it empty?

The receipt from the pump said 7.7 gallons. That's how I know. It is actually empty but the guage says it still has half a tank.

Thank you also to the person who suggested the sediment issue. I'm on my phone and can't multi-quote. I think the float is getting stuck too, therefore telling the car it can't take anymore gas than it is.

[evil_demon_01]

The receipt from the pump said 7.7 gallons. That's how I know. It is actually empty but the guage says it still has half a tank.

Thank you also to the person who suggested the sediment issue. I'm on my phone and can't multi-quote. I think the float is getting stuck too, therefore telling the car it can't take anymore gas than it is.

7.7 gallons isn't a full tank though, it's only half a tank . . .
And you say the gauge reads half a tank . . .


So like I said - How do you know it is actually empty?




By the way - The sender float can't tell the car it can't take anymore gas.
The petrol station pumps automatically stop based on back pressure out the filler neck.

[Leung]

The way i am reading everything is when the OP goes to fill her car up, the fuel gauge registers full after 7.7 gallons. After driving "x" miles throughout the week, the car begins to stutter and shut down like it was out of fuel even though the gauge is saying it is at half a tank.

I think it's time to drop the fuel tank to see what's really going on. Since it's technically "empty", this would be the perfect time to drop it otherwise it's heavy and fuel might spill and all that jazz after a filling.

[s.green]

7.7 gallons isn't a full tank though, it's only half a tank . . .
And you say the gauge reads half a tank . . .


So like I said - How do you know it is actually empty?

By the way - The sender float can't tell the car it can't take anymore gas.
The petrol station pumps automatically stop based on back pressure out the filler neck.

1) the gauge is reading "full" because we put gas in it. I know 7.7 gallons isn't a full tank, I am smarter than that. That's why I'm here asking questions.
2)I know it's empty because the car shuts off when the tank is low and the gauge is making it's way to "half". Half is my empty
3) why did you take so long to say what you did about the sender float? Wouldn't the float have something to do with the back pressure?

The way i am reading everything is when the OP goes to fill her car up, the fuel gauge registers full after 7.7 gallons. After driving "x" miles throughout the week, the car begins to stutter and shut down like it was out of fuel even though the gauge is saying it is at half a tank.

I think it's time to drop the fuel tank to see what's really going on. Since it's technically "empty", this would be the perfect time to drop it otherwise it's heavy and fuel might spill and all that jazz after a filling.

THANK YOU!

I don't think my original post was too difficult to understand. I did give all of the issues and information that I know of.

I DON'T know why it won't take more at the pump. I just had a theory that I was trying to get help with.

[evil_demon_01]

THANK YOU!

I don't think my original post was too difficult to understand. I did give all of the issues and information that I know of.

I DON'T know why it won't take more at the pump. I just had a theory that I was trying to get help with.

Does it auto shut off at the pump and you stop, or have you tried to add more and it fills up enough to come out the filler neck?

[evil_demon_01]

why did you take so long to say what you did about the sender float? Wouldn't the float have something to do with the back pressure?

I'm just trying to help you

No it won't affect back pressure.
How could the float affect back pressure? All it does its floats up and down to move the resistance slider which indicates the fuel level on your gauge.

It it the small black piece in the pic C91BLX7 posted.

[s.green]

Does it auto shut off at the pump and you stop, or have you tried to add more and it fills up enough to come out the filler neck?

Normally, I don't put more than 20 dollars in. I let the pump shut itself off today and that's where it stopped. I usually don't try to force more in because I have bad luck with that in the past.

I know I have a bad/ not working properly float. I never would have thought that it or something else would be keeping my tank from getting full. This is the only thing I blame so far, but wanted to rule out other possibilities.

I am appreciative of all the feedback, I really am.

[quaidum]

the fuel pick up/filter could have fallen off(not likely but possible)

has the fuel pump been replaced before to your knowledge, sometimes the new filter on the new pump will not go as low as the original filter and it will start to suck in air instead of fuel around half a tank or so