Dual tank switch/gauge question

[dmack91]

I have read Hatzie's thread already and it helped a lot. Thanks Hatzie!


I have been trying to troubleshoot my system to get my gauge to work.

I have an 83 K20 with dual tanks. I have sender readings at both the A and C connections on the weather pack connector. When I plug it into the pollack valve, I don't have a reading at the B wire to the gauge. I have cycled the switch with the key in the on position and still nothing.

I have confirmed that the switch has power at the dash, and that it reverses polarity at the weather pack to the valve.

I have plugged in another pollack valve into the connector (spare used pollack valve) with the same results.

The wire from the B terminal to the gauge was cut under the firewall when I got the truck and I have been working my way from tank valve forward.

My initial assumption was that the switch inside the valve was shot, but I am questioning that when I have the same result on two different, albeit used, valves.

Am I missing something or do I need to get a new pollack valve?

Thanks in advance for any help you can provide.