@fourfive

How is the repair holding up now a little while later? The gauge in my 01 has been acting funny lately too. Typically I only see the issues at half a tank or lower, but the gauge will be at total empty when I start it and have the light on. After running for awhile it will rise back up to an accurate reading and the light goes off. It doesn't do it every time either though which is strange.

I've been reading about the fuel sending unit being some people's problems, one or two people saying the calibration fixed it, and then some people saying the ground wire fix solved their issue or they had a grounding issue in the rear of the truck with the taillights or trailer harness which is tied in for at least some years I guess.

I'd love it to be a simple fix that doesn't involve dropping the tank. I already did that once years ago when I replaced the fuel pump as preventative maintenance.