My sister has a 2003 Chevy Surburban we have been replacing the battery, starter & alternator all summer. It start with her truck not starting in the am & needing a jump start to not starting throughout the day with just running into the store for 20 minutes or so. We replaced the battery the 1st time because it was going completely dead and needing to be disconnected to be recharged. Then after a few days went by it quit working again this time need a alternator, which we replaced, but after a week the battery drained again needing to recharged. I want to say not even a week has been past & the samething happend need a starter this time. Replaced it then maybe a weeks time the alternator again. Long story short we have replaced the battery & alternator 6 times and still is having the same issues. The auto parts store said the parts was just bad parts, but 6 times and they were saling us a alternator for a 02 instead of 03. Would that cause my issues to be more than what we were having. NEED HELP PLEASE!!!