My 2008 4cyl. g6 in october was acting like the battery was dying, would barely turnover, it would by almost to the point of dying. I checked the battery it was 4 years old, so i just went ahead and put a new one in. It helped up until now (6 months later) and the same issue. It seems to my like it is the starter. I have checked the alternator with my voltmeter and it is working fine. I can drive it for a while and when i get back in it, it still drags almost down to nothing when it starts. Anybody has dealt with this before, it would sure be helpful, my gut tells me it is the starter??