OK sorry if this has been discussed, but I just spent a hour and can't find it. I just bought a 06 and it seems to turn over slow and hard. It had a 650cca battery in it that works fine in my truck so for shits and giggles I took my 800 cca battery and stuck it in there same problem. Sounds like the battery is going dead or very weak. When the car is hot same problem maybe even worse where you crank it and it doesn't go then wait a minute and it starts but very slow turning over. Any ideas?? Thanks in advance.