fuel gauge diagnosis confirmation anyone?

[svalkid]

'72. Fuel gauge didn't work when I got the car. Then suddenly sort of worked. Now it doesn't again.
With tank full I have .07 ohms of resistance from sending unit stud, to ground.
With a test light, I have a dim light when checking from sending unit stud, to the wire from the gauge.
Sounds like from what I have been reading, I have a bad fuel gauge.
Whatcha think?

[A383Wing]

what does the sending unit OHM's read when tank is empty?

[svalkid]

Have not checked it empty yet.

[A383Wing]

I would suggest getting a service manual and following the instructions in there for fuel gauge issues...

note: you cannot properly diagnose a fuel gauge or sender problem with a "test light"

[fy469rtse]

I would check the earth if you got some life out of it, or like its been said go to the service manual 

[John_Kunkel]

The sender spec is 10Ω full and 73Ω empty. If you want to check the gauge with an unknown quantity in the tank, place a 73Ω resistor between ground and the sender wire at the tank...gauge should read empty.

Half way on the gauge is 23Ω.