Our fuel level indicator seems to have gotten a tad buggy in the last few months. We're at 45K on the '03 Sequoia SR5.
The first instance was when I had started the engine and the fuel needle wavered and then dropped to where like negative 1/2 tank might be. Way down off the scale. It stayed there, so I just turned the truck off for a second and restarted - the indicator started that low but then worked its way back up to where it should have been. Very strange in itself, but wait...there's more!
It seems as though since that time, a full tank sits on the other side of the full line than it used to. Almost like how when your truck's loaded it displays a different amount of fuel. Wierd but not a biggie.
Finally, this weekend, on the final part of a 170-mile run, the indicator slowly drained from 1/4 tank to near empty (with the low-fuel light coming on) over the course of ten or twenty minutes. While I was rushing to get home to see Desparate Housewives and wondering if I was going to make it the final 20 miles without stopping for gas, traffic loomed up ahead and I had to jump on the binders. Lo and behold, at that very instant, the fuel light extinguished and the fuel level returned up to 1/4 tank. After getting home and then filling the next morning, it's clear that there was actually 1/4 tank in there at the time.
This is sounding more like a fuel level sendor/sensor issue, doesn't it?