I just put a new sender in my 23(ish) gallon tank and have filled it with 7 gallons of fuel. I would have thought I would see something register on the stock gauge if it was working. Perhaps not and I hope that I'll have good enough weather to run into town a fill up and verify. But if that doesn't do it, what course of action should I take? I assume I should be able to take some ohm readings on the wires attached to the gauge?

I've never had a cluster out, so not sure what to expect, but when the sender failed years ago, I would get a reading when it was above half a tank. I double checked the ohms on he sender before install. I have a good ground.

Thanks!

FYI, at 8 gallons I register just above E and I have a 23 gallon tank. I haven't tried putting more fuel in yet. I tested my sending unit before I mounted my tank and it was 77 ohms empty and 10 full. I thought that would be closed enough. I hope I was right.

Do your other gauges work? If not it could be your instrument cluster voltage regulator or ground. I ran into this issue and tried to replace the regulator and it worked for about 10 minutes and quit. I grounded my gauge to the firewall and my firewall to frame. I then grounded my frame to my engine block. I am going to order a new electronic regulator from "Toms" and give that a try.

The speedo works, but I know that has nothing to do with electrons. The turn signal and headlight indicators work, but none of the other gauges have ever worked. I would bet they may not have ever been hooked up for the last 10+ years.

I filled it totally up today and still no change.

I’d check your voltage regulator if none of the gauges work.


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