Hi folks.. New here and happy to find this forum. I have a weird issue with my 2005 6 cyl Equinox. It has big problems starting if left parked in the hot sun! Won't turn over, sometimes it takes me several tries to get it to turn over. It almost sounds like a battery dying while it's trying to start. But if it's parked in the shade or in a garage, it starts without a problem. Does anyone else have this problem? Or does anyone know what it could be? Many thanks!