I am trying to get my fuel gauge working correctly, but struggling.
I started by using the ford gauge tester, the gauge it self seems good. Empty 1/2 and full are spot on with the tester.
Next I pulled the sending unit and checked the ohms. It was erratic, and the readings were all over the place, so I opened it up and used some steel wool lightly to clean up contacts. I checked it with the ohm meter and got 11.3 to 71.6. Seems close enough to me for what I have found for information.
I hooked up the sending unit to the wiring at the tank and a jumper wire from the sending unit to the opening on the tank to create the ground. I moved the float arm back and forth and checked the readings on the gauge. Everything was good except full was only about 7/8. I was ok with that I was more concerned about where empty was.
I put everything back together and put 5 gallons of fuel back in and the highest the gauge will go is in the middle of the red on empty.
My question is what am I doing wrong? Does the sending unit need to be rebuilt? Can it be as simple as a bad ground connection when I put the sending unit back in? I feel it has to be something simple but don’t want to keep chasing my tail. Any help would be appreciated.