I have searched the net and can not find a repair manual for a 2005 Cavalier only 2004. Can you help? are they the same?

They are generally a couple years behind on repair manuals, but the 2004 should work.

I agree, get the 2004. I doubt there are any big differences mechanically or even physically.

Besides, why would you need a repair manual? Use that warranty while you got it.