Bouncing Fuel Gauge

[OldSchoolFormula]

So...I can't take it anymore. I've had one too many people ask me why my fuel gauge is bouncing around like a 5 year old who's had too much soda and pop rocks before bed. Due to my unbaffled tank, the only time I get an "accurate" reading of fuel level is when its empty, full, or I'm at a stop. I'm using a Stewart Warner #114224. Any suggestions?

[shep]

First guess
bad ground on the sender at the tank?

[OldSchoolFormula]

It's not a ground issue, the gauge just responds instantly to the perceived level of fuel in the tank as it sloshes around. You can, and I have, taken the sender out of the tank and moved the float by hand. The gauge reads just fine and will move as fast or as slow as the float. I know the old stock original gauges used to be buffered with a thick fluid, and now I'm reading about Fords using an "anti-slosh module" in their gauge setups.

[OldSchoolFormula]

I can't be the only guy experiencing this problem. I know some of the high end cars on this site have SW gauges, just deal with it?

[clong]

My Autometer does the same thing. I have been told that resistors could be added to the signal line to slow the reaction to the sloshing fuel.
Does anyone know if this would work?

[OldSchoolFormula]

A resistor won't work, it will just change the reading of the gauge up or down. A capacitor from the signal line to ground may work, though I don't know how large you should go or if there are any risks of sparks within the tank at the sending unit...

Does Bad Penny have a cracked out fuel gauge?

[gEtyOpAPiOn]

maybe he ment a capacitor ...that should dampen the voltage spike ? like a tig pedal ?