Some 2008-11 Ford Crown Victoria, Mercury Marquis and Lincoln Town Car models may produce a coolant leak at the upper/left portion of the radiator.
After performing a visual inspection you'll probably find that the leak is actually coming from the transmission cooler, where the transmission lines enter the cooler. Ford reports it has had troubles with the cooler assembly.
Replacing the transmission cooler/condenser core with an updated unit, part No. BW7Z-19712-A, should put the leakage issue to rest.
"Factory Fixes" is written by Jim DePalma, a 30-year veteran of the auto repair business who has served stints as a service manager, parts manager and ASE-certified technician. His column provides vehicle manufacturers' authentic factory technical service bulletins (TSBs) that have been condensed for easier reading. Mr. DePalma advises that techs always check with a dealer or repair information system for the latest revisions before starting to work on a vehicle. He can be reached via e-mail at [email protected].