it's possible that one of the calipers isn't releasing the rotor completly. seen that on several fords. lift the wheel in question and see if it spins freely. if you feel it drag or grab, then your caliper might need replacing..... keep in mind thats my $0.02 though
don't know why it would happen when it cools off though......
[ November 23, 2002: Message edited by: crazy larry ]</p>