We have a 2000 Toyota Camry 4-cylinder, automatic.
For about a week now it has been having trouble starting. It hesitates (described as a slow churning) when starting. And each time this happens the clock also resets.
Any ideas what could be causing this? Bad ground at the battery?

It may be your battery connections or battery itself. Go to an automotive store and ask them to check your charging system. Autozone and Kragen do it for free in my area.

Download your service manual at www.camrystuff.com (http://www.camrystuff.com). There you will find a troubleshooting section for your car.

Good luck,

Sam