After reading the posts on testing both the gauge and sending unit there is just one piece of info missing?
If the gauge is removed from the truck for bench testing would the contact pad on the back of the gauge that would normally be grounded via the body, play a part in testing?
My first thought with this not working correctly was if the gauge housing was not getting a good ground due to corrosion on the back of the dash.
Any thoughts would be great.
https://photos.app.goo.gl/dpUPTpllVbLZnF562
