Can someone tell me the location of the fuel pump inside the fuel tank?

Questions:

- Is it on the bottom?

- When does pump get fully submerge? Full tank, 3/4, 1/2, 1/4?

- Yes, we all know the pump has to work hard if the tank is empty. So at what point does the pump start to "work hard?"

- ^^^ in other words, does the pump work less with a full tank vs half tank of gas?

TIA

 

I'd also like to know. Thanks.

 

It varies from tank to tank because they are all designed to fit in different spaces

The pump itself isn't, but the inlet filter is.

somewhere between 1/2 and 3/4 for the actual fuel level to be higher than the pump (depending on the tank)

"We" do? Why would the pump "work" any harder with 1 gallon in the tank vs. 13 gallons?

No
The pressure relief valve determines how "hard" a pump has to "work."
I could have a 1000 gallon tank and run a pump at 1 psi all day.
Or
I could have a 1 gallon tank and run a pump at 1000 psi all day.
Which pump would be "working" harder?
How does the volume in my tank affect that?

I recommend learning about fuel systems; what parts do, how they are plumbed, etc.
Then understand the difference between volume & pressure.
After that, fuel systems will be cake.

 

The fuel pump sits wherever a manufacturer wants to put it. Most compact car fuel pumps can be accessed by removing the rear seats. What kind of vehicle are you referring to specifically?

The fuel pump sock is always submerged in fuel, generally in a baffle region to prevent fuel starvation during high speed driving/cornering. The fuel pump is cooled with return line fuel on systems that use this design.

Most fuel pumps run at 100% duty cycle, they never take a break so long as fuel is supplied and power is on. The load placed on the pump is determined by the fuel line size and any restrictions (such as a pressure regulator) in the system.

There are a select group of vehicles that use a Pulse-Width Modulated or Variable Voltage fuel delivery system, in which the fuel pump is only engaged when pressure falls below a certain point.

Any fuel pump can suffer internal damage due to overheating due to a lack of circulating fuel. On a near empty tank, the return fuel will be quite warm, which can damage the pump.