There are a couple of bulbs in the taillight: turn, brake & backup.
See "Related Questions" below for a Taurus/Sable lightbulb-round-up...
Ask at an auto parts store.
Parking / Running light bulbs are inside the headlight housing.Refer to the "Related Questions" below for specific instructions by model year groups.
ask a repairman
you have to take the brake light out of the housing and then twist the amber bulb out
how do I replace a parking lamp (left) on a 1996 Ford Taurus
Check for corrosion on the connector or attached wire.
Check your bulb, In the rear of the Generation 4 Ford Taurus, they use a single Dual filament bulb for the marker, turn signal, and brake functions. Chances are your bulb is burnt out and needs replacement.
I had to take the bulb out of mine, no one could fix the problem and I didn't want my battery to wear out.
How do you change the -driver side rear bulb Ford Taurus Station wagon turn indicator? The front indicator works but blinks really fast.
1997 Ford Taurus turn signal light bulb replacement: Purchase the correct replacement turn signal light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the turn signal light bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
Just replace the light bulb.
how do you replace the fog light bulb on a 2003 ford explorer.