87 chevrolet pickup can't switch to either tank

[mitch87]

Truck was running then died. I had switched the tanks in my work parking lot and the gauge registered full. I pulled out into traffic and the truck stumbled but then came out of it. I drove a little further and it eventually died and wouldn't start again. I tried switching tanks but it is not switching. I don't have power at the tank switch on the dash. Only one wire has power on it at the switching device at the tank. I tried the switch in both positions but the same wire is the only one that has power on it. I assume that it is for the gas gauge for that tank. Whatever the case even though the gauge reads full there seems to be no fuel and it the tanks won't switch.

Does anyone have a wiring diagram for a 1987 dual tank chevrolet pickup?

[rdhack]

Ive seen one on another forum for your truck but I do not think I am allowed to tell you where it is. Just do a search.

[leolkfrm]

Welcome to the forum
if you fill the other tank I'm assuming all is fine? I will look for the diagram when I get down to the toolbox, sorry that book is not in the house right now