We had an 03 Excursion. The alt. charged both engine and house. If your having a problem check your batteries both house and starter with a meter with batteries off, isolated, read the voltage to see which if any unit is not reading 12 volts plus. Next step would be to read the specific gravity if your voltage is off?
Clay & Pebble.. Miss Butter our sweet Goldie (Jan. 2005-Jan. 2015) Sissy our Border Collie
2012 Providence 42 M. Spartan Chassis, 450 ISL
Ford Edge toad, RM All Terrane, TST TPMS, SMI Air Force One, RVM95....