Check out the "Related Question" below for lots of information about malfunctioning flashers on Taurus - Sables. It's not as bad as you might think...
If your check engine light is flashing that means an engine cylinder misfire has been detected
It makes the signals and the hazards flash.
change the flasher relay
either a bulb or the signal flasher relay located on the fuse panel usually opposite the hazard flasher relay
add a faster relay
check you light bulbs
No. there is no relay for the turn signals.
Check the fuses or change the bulbs.
Yes, water can cause a misfire, which will cause the check engine light to flash.
Problem with the SRS. Not a DIY repair. Take it to a professional.
One of the bulbs are broken, check all of your turn signals.
Probably need a new turn signal bulb.