Like Curly wrote, PB Blaster is the best stuff around for
freeing rusty bolts and screws. It's available for a few
dollars a can at Autozone, Wal-Mart, etc. Tapping on the
bolt or screw can help shake some rust off, too. Soak with
the PB Blaster, tap, soak again, try to unfasten.

Post specific instances here, and people can give more
advice, depending on the scenario. And there are a lot of
them!

"John Smith" <jsmith@yahoo.com> wrote
>I am trying to perform several tasks that all seem to end
>up the same -- stymied by a rusted, stripped, immobile
>screw, bolt, or connector. (My car is a 99, driven eight
>winters on salt-laden streets.)
>
> The latest is the retaining screw that holds the air tube
> on the throttle body which won't budge no matter what I've
> tried. If I could get it off, I'd like to remove and
> clean the throttle body but I have no idea what obstacles
> that will present. I'm also trying to get to the IACV
> which is way behind the throttle. The one screw I can see
> looks rusty to me, and I'm put off by attacking the ones I
> can't see. I also need to remove the distributor and
> expect to find similar obstacles in that job.
>
> Any advice, tricks, tips etc. for dealing with these
> energy-sapping obstacles would be appreciated. Thanks.
>
>
>