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Fuel Tank Selector/Pump Circuits


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Whoops! I was really careful to get it right in the initial post, but, yeah, I meant "valve" in that last post.

Good to hear.

I have senders wired through the switch (instead of the valve) because that's how the stock 83 switch is wired (I think). It's a DPDT switch, with senders wired through one pole, nothing on the normally closed (switch on the front tank) and the single 12v wire on the other normally open wire. At least, that's what the 1985 wiring diagram shows. I don't really want to go digging into the dash wiring to switch it to running through the valve.

"I'm not sure why you don't simply use a switch from a diesel or 7.5 that is a crosswired dpst as shown in the initial drawing."

I don't understand what you're saying here...I think the switch I am going with (the Standard Motor Products FV5), the same one I posted the wiring diagram to in the initial post, IS the replacement for those vehicles too. I don't find another switch out there for these.

Edit: I meant the manufacturer drawing... the first in this thread.

Let me call your attention to pages 97 & 98 of the '86 EVTM.

http://www.garysgaragemahal.com/fuel-tank-selector--gauges1.html

7382031_orig.jpg.a0a93cce15a109f7afc36fcd98ce750f.jpg

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