I am working on a 2008 Grand Prix that was in a front end collision, I rebuilt it and am now having a problem with the charging system cooking the battery.

It was steaming. I assume it is overcharging the battery.

Any ideas on what or where to look into?

I did repair a few wires that go to the throttle body, I wonder if there are others that are damaged?

Any help will be greatly appreciated.

-Jay