Gas tank trouble

gasoline

#1

The gas guage on my son’s f-150 dual tanks do not work.

They say we’ll have to drop them to repair.

What actually will need to be replaced and can we do it ourselves?


#2

The gauge doesn’t work at all?

Do the two tanks drain together (no switch over)?

Before dropping the tanks ensure the wiring circuit is good and there is a good ground connection.

It is possible the sending unit may be faulty. In the tank?


#3

The reason the tanks need to be dropped is to get access to the senders in to gas tanks. But, for both to be out, I question the immediate need to drop them. For both senders to be bad at the same time is unusual. The usual culprit is the three-way tank switch or a wiring problem under the dash. These need to be ruled out before spending money to drop the tanks. BTW, electrical problems like this can be hard to find, and cost a lot just in the labor time.


#4

No, the gauge doesn’t work.
There is a switch, and when the switch is flipped there’s movement.
One solution I came up with was to fill the front all the way, and put about $20 in the back.
When the front runs out, he can switch to the back.
That way, writing down the mileage we’ll know approximately how far he can go.