Been there my 99 SVT had the same problem shifting into second when the weather was cold. Took it back to the Dealer several times and we decided to wait and see. After year and a half Ford replaced the transmission. So far thge problem has not reappeared but it has been hot even here in the Great White North. Getting the tranny was a nighmare took 16 weeks due to the dealer loosing the order even though I checked every couple of weeks and was told that it was still on backorder !! Once that was solved it still took 8 weeks and now I have a definate clunk in the front end. Time for a new dealer as it has been back but it still does the same.
ps. They tell me the cocktail that is mentioned will void the warrenty PDQ. Even though they put in some secret formula according to the technician who did the work.
