Fuel sender

[driver007]

Can a person bench test a new fuel sender to see if it is working before installing? It shows no renitence on the meter.

 

[DHugg]

Can a person bench test a new fuel sender to see if it is working before installing? It shows no renitence on the meter.

Driver007, I just installed a new one in my CJ7 AMC 304 . It is simply a variable resistor in which a wiper attached to the float sweeps across a coil of resistor wire wrapped around a mandrel.

If you remember that a short wire attaches to frame ground, while another wire, purple I believe in my CJ7 , runs to the fuel gauge. A volt-ohm meter should be able to measure the variable resistance.

Here's more than you probably want to know about CJ-7 gauges:

 

[driver007]

Do I need to do it in line or can I do it separate.

 

[Peanut Butter]

Do I need to do it in line or can I do it separate.

Separate is ok. :driving: Rod

 

[driver007]

When I bench test it does not show any value just stays at zero no matter were you put the float.

 

[Torxhead]

You are checking for ohms right? On John Strenk's New Gauge Page, there are the proper readings you need plus other info on gauges.

 

[Posi]

empty

 

[driver007]

Yup the ohms reading does not change. The company is sending out a new one.