1985 Ford F-150 5.0 fuel injection

I have a 1985 Ford F-150 5.0 fuel injection , auto transmission, 4x4,  air condition, cruise control , dual fuel tanks with 5 pin 6 port fuel tank selector switch.  All original matching numbers 141,000 miles . My best friend bought the truck new in 1985 and kept it in the garage except to go to Lowe’s or if needing to haul something.  He passed away last year and his family wanted me to have the truck.  I have been going stir crazy trying to get the rear fuel tank to work and gas gauge works at times   I replaced both pumps and floats in the tanks, pump on frame rail , and the selector switch on the frame .  

Bob?  Is it Bob?

Welcome!  Glad you joined.  

That is a nice looking truck, and it must mean a lot to you to have it as it will always be special to you.  So we'd like to help you get it up to snuff.  However, the New Members Start Here isn't the best place to do troubleshooting as you won't get as many people seeing your post here as in the main section.  So I'd suggest you click on Bullnose Forum at the top of the page and then click New Topic and start a thread about the truck and its maladies there.

Here we typically do welcomes, and one of my standard welcomes is the "Where's home" question.  That's 'cause we have a map (Bullnose Forum/Member's Map in the menu) and we could add you if we had a city or zip.  Who knows, you may be a neighbor.

Augusta Georgia

Welcome!

You are now on the map.

Welcome Bob!  

Have you considered the switch on the left of the climate control?
There's not much else common to both the pumps and gauge/senders.