The reason I am having trouble believing that it's the sending unit is that it can go to full or empty, regardless of how much gas is in the tank. Right now I'm using my odometer as my gas gauge.
I would think that a failed sending unit would fail in such a way that it always stays in a single position...? (either full or empty if there is a short or broken circuit, or somewhere in middle if the float got stuck/seized...)
The car does have the access panel in the trunk- that was the first place I looked. I was hoping to see an exposed wire that was worn through the insulation or something like that...
Thanks!
-Bob C.
