[raymo]

I have a '93 YJ and I modified the fuel filler vent so it now will fill to 22 gallons (used to fill to 16 gallons).

The problem is that the gauge will show 1/4 full, but is empty. Does anyone know how the sending unit works?

Any help is appreciated.

 

[raymo]

Thank you all for the responses.

Just to clarify, the guauge is normally right after going through the first 5 gallons or so. It is pegged full until it gets down to the normal full level. After that it will drop to empty. I think something must be stuck (after reading the great responses) and that it won't go below 1/4 tank. So, the gauge isn't that accurate from full to about 3/4 full (the old full mark) and gets stuck at 1/4 even after the fuel drops below that level.

With the sending units being so pricey, I think I should just go for the dual jerry can tire carrier.

-ray