not having a battery light dosent mean anything. its really more of a dummy light. if you have no volts at the alt then it is time for a new one. better get it fixed fast low voltage will cause FICM failure and that is not a cheap part to buy.
06 F-250 Lariat C.C too many mods to list
07 F-350 Lariat C.C DRW 4x4 - ARP studs, ADP custom built stage 2 fuel system, 5" TBE, custom ADP f650 dash, SCT with custom tunes, more to come come Join the Texas Chapter Click Here!!
Just as an FYI, low battery voltage can damage the FICM which can turn an alternator or battery issue into a much more costly repair. I would recommend that you get the problem diagnosed and fixed quickly before it becomes a major issue.
While the alternator is out I would have both batteries individually load tested to make sure they are also up to snuff. If one is bad replace both. The other won't be far behind and can drag a new battery down.
2015 Platinum 6.7 F-350 loaded with White metallic ext. and Pecan int.
2015 Mercedes C300
"69 Mustang, Mach 1, 428 CJ, Ram Air, Stock
2007 FLHP H.D. Road King
2007 Thor Jazz 5er, 11k dry weight, 31'
173rd abn. rvn
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.