I have a 2012 JKUR with a genesis dual battery system. Currently has two Walmart regular car batteries. My issue is I have two auxillary tanks with pumps that are not working consistently. Did work fine for approximately 6 months.
Pumps are standard 12v fuel transfer pumps. One is wired to a Long range automotive dual fuel indicator / pump switch. The other is to a standard toggle switch. Both are than wired to a standard toggle that serves as a master power switch. Master power switch goes directly to main battery (both positive & negative). Sometimes works fine, some times will start and then just stop (almost like it runs out of power) and sometimes it just won't come on at all. I have checked connections and they seem to be tight (internal switches done with wire nuts, external wires to battery have crimped and waterproofed connectors with a positive line that has a inline fuse). No consistent time that it happens although seems to consistently fail when on interstate at higher speed but fails fewer times at slower speeds. Any thoughts?
Pumps are standard 12v fuel transfer pumps. One is wired to a Long range automotive dual fuel indicator / pump switch. The other is to a standard toggle switch. Both are than wired to a standard toggle that serves as a master power switch. Master power switch goes directly to main battery (both positive & negative). Sometimes works fine, some times will start and then just stop (almost like it runs out of power) and sometimes it just won't come on at all. I have checked connections and they seem to be tight (internal switches done with wire nuts, external wires to battery have crimped and waterproofed connectors with a positive line that has a inline fuse). No consistent time that it happens although seems to consistently fail when on interstate at higher speed but fails fewer times at slower speeds. Any thoughts?
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