Welcome to E-C, Laurie! And check your mail for a check, Dave.

There's no turn signal flasher in any E/M/T since the 2005 model year (2001 to 2004 Escapes and Tributes have a separate flasher). Turn signals (and most other exterior lamps) are controlled by the Smart Junction Box.
LED retrofits will cause the signals to flash much faster, since they draw so much less current that the SJB thinks that a bulb is "burned out". Also, most LED retrofits are still pretty weak in aiming any light in the area of the car's lamp housing reflector, so the result is actually dimmer total light output. Personally, I'd stay away from LED bulb replacements for tail lamps and signals, but that's just me.
One thing that I've been thinking about trying is the LED lamp unit that Ford developed for the Taurus X and 2006+ Mercury Mountaineers. It appears to fit in place of most newer Ford stop/tail lamp sockets, but I can't verify that. It directs almost all of its light toward the reflector, it's extremely bright, and the dimmer "tail" function internally pulses the LEDs, making them very noticeable at night.
http://tinyurl.com/len9gu
There's no turn signal flasher in any E/M/T since the 2005 model year (2001 to 2004 Escapes and Tributes have a separate flasher). Turn signals (and most other exterior lamps) are controlled by the Smart Junction Box.
LED retrofits will cause the signals to flash much faster, since they draw so much less current that the SJB thinks that a bulb is "burned out". Also, most LED retrofits are still pretty weak in aiming any light in the area of the car's lamp housing reflector, so the result is actually dimmer total light output. Personally, I'd stay away from LED bulb replacements for tail lamps and signals, but that's just me.
One thing that I've been thinking about trying is the LED lamp unit that Ford developed for the Taurus X and 2006+ Mercury Mountaineers. It appears to fit in place of most newer Ford stop/tail lamp sockets, but I can't verify that. It directs almost all of its light toward the reflector, it's extremely bright, and the dimmer "tail" function internally pulses the LEDs, making them very noticeable at night.
http://tinyurl.com/len9gu