Checking Fuel Sender With Ohm Meter.

[greg g]

Need someone to talk me through this in idiot speak not engineer or electrician speak.  Does it need to have power?  can I supply power from my 6v battery charger?  Which setting on my meter  Harbor freight cheapomatic with with inductive clamp.

 

Can do it in a PM. 

[BigDaddyO]

No power when checking ohms.

[Alshere59]

No power as started and the setting will look like an upside down horse shoe. Then just touch the meter probes and read the display. By that I mean one lead to the terminal and the other to the base of the sender. Assuming it is a single wire sending unit. Basic example on the 6th pic down here. The meter should read the amount of resistance as the arm from the sender go's from top to bottom in its travel. So 10 ohms resistance is empty and 78 is full. 

http://www.etgiftstore.com/meters.asp

[P15-D24]

What I did was head over to rado shack and purchased a10 ohm and 78 ohm 1/4 watt resistors. (should cost about a buck)  Then hooked up each one separately to the terminal on the gauge and turned on the power. That way you can isolate the problem, gauge or sender. WIth one resistor hooked up it should read full, the other empty. If not you know you have a gauge issue, not a sender issue.