I have a 2005 firebolt xb12r and I have had problems lately with it starting so i have replaced the battery and it ran fine for a while but now seems like its dead... even when i put it on the charger it still wont start. It has about 13000 miles on it and is overdue for a spark plug change also think it could maybe be the alternator or starter. If anyone has any suggestions i would really appreciate it Thanks!!![confused]