StevieA,
Your right, WD40 isn't usually a permanent fix. However, if you've fixed the fundimental problem of water into the motor from above, shouldn't be any further problem.
Rauno,
Yes, that's a pretty fundimental 'short to Ground' ! Have to love the de-burring Ford do on 'covered' stamped metalwork.
Interesting is that the Mondeo/Cougar in both manual and SATC use vacuum to move the 3 direction flaps. The temperature flap is controlled by an electric motor.
Martin