I have duel tanks myself and Im actually getting ready to replace the fuel pump I hope I don't have the same problem but if I do I'll figure it out and help you out

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1985 Ford Ranger 2.8L V6 Automatic
Duel gas tanks | Spare Tire mount | Busted grill | Bent lower grill | Needs front quarter panels | Some surface rust | About 130,000 miles | Needs right side exhaust manifold | Has 1/4 inch rubber bed mat | Int. of bed in excellent condition |