Fuel sending unit

[nodemon]

I have my original fuel sending unit, but have no idea of the functionality of it. Is there a way to bench test..? Are there parts that can / should be replaced..?
I hear the aftermarket ones aren't that good or calibrated correctly giving a false fuel level.

 

[Dana67Dart]

An ohm meter between the sender wire post and the body of the sender ( the tube or the flat plate)

Then move the arm and watch for resistance change

The official values

Are 10 to 73

And 23 is 1/2 tank (but 1/2 is NOT 1/2 travel)


Full droop should get you in the 60-80 range

Full up should get you 5-15 range.

If those 2 are good and the resistance changes readily consistent from full droop to full up ( meaning it doesn't jump around too much)

 

[Kendog 170]

Maybe a new sock as well? Unless it's in good shape.

 

[halifaxhops]

Specs