You should check the belt and the belt tension. You should check the belt and the belt tension. **answer** your whole ac system is about to go and stop the engine it happened to me after hearing that sound i let it go for about month or so and my engine stopped two tow trucks a 1300 estimate so i got a friendly mechanic to do the job for 750 dollars and he did it in the winter and didn't add enough freon. but it works good but i came to wiki to find out where to put the freon.
motor mount motor mount
No, all Focus models are front wheel drive.
could be a bad motor mount.mine was bad and I got a lot of vibrating / rattling sounds.
The 2002 Ford Focus has front wheel drive.
The 2007 Ford Focus has front wheel drive.
The 2006 Ford Focus has front wheel drive.
The 2011 Ford Focus has front wheel drive.
The 2005 Ford Focus has front wheel drive.
The 2012 Ford Focus has front wheel drive.
The 2013 Ford Focus has front wheel drive.
The 2010 Ford Focus has front wheel drive.
The 2001 Ford Focus has front wheel drive.