As you know, I installed the supercharger 3-4 weeks ago. When we first installed the fuel pump, we accidently switched the positive and negative wires.
Okay, silly mistake, drop the tank and do it again.
So we switch wires and start the truck up (we changed out fuel pumps before we installed the supercharger just to make sure it worked correctly)
Yup, truck fires up... shows 1/16th of a tank, yellow light on.
Great.
Get the supercharger installed, go to fill up and what? No reading on the gas gauge.
Okay, apparently we must have knocked a wire loose.
So we drop the tank.
To make sure everything is working okay, we plug the fuel pump back into the wiring harness without installing it in the tank.
Ummmmmm, a shot of gas in the face.... okay, so we didn't totally drain the fuel out of the lines in the pump.
It's hums and when we manually move the float, the gauge in the truck moves.
Cool, fixed... we can move on.
Install everything and drive the truck... go fill up and guess what... no freakin gauge movement.
So we drop the tank AGAIN. I pull the pump out and measure resistance across the rheostat....hmmmm, seems to short out and give intermittent readings. When I look at the contact between the metal tabs and rheostat, there seems to be a bit of a gap.
What, $250 for a freakin level sending unit, are you nuts?
I get a rheostat from a friend with an older tank only to find out it's a different style. I manage to remove the rheostat and install it on my tank.
I install the tank and the gauge goes to 1/8th of a tank (which at this point is what I have in it) and the yellow light goes off.
Great, fixed.
I drive the truck to the gas station, put in 5 gallons and no gauge movement.... argghhhhh.
So I break down and pay the money for an OEM new sending unit.
I install it in the tank and guess what.... IT DON'T FREAKIN' WORK.
Once again, I pull the tank and the best I can figure is the float is getting stuck. Not sure how or even why but when I manually connect it and move the float level, it works.
I take the pump assy apart and slide it together 180 degrees out so the float doesn't come anywhere near the tank.
Guess what, it works.
Finally...
What a clusterfudge.
Mark