Hmmmmmmm I'm thinking battery or alternator, you should check the fluid in the battery, epically in Florida the heat will evaporate battery acid, if it's low boil some water, let it cool and top of the battery but make sure you do it after you stop the truck and it has a lot of charge, then take the truck for a nice long drive to put some charge into the newly distilled waterJB Titan said:
--Jay