If you're talking about the 2 lights on your dash, it's a defect in the ABS control module. It took me 2 whole days to fix this, including cutting open the module, resoldering the joints, and reassembling everything. Hopefully, for everyone's sake, Ford will issue a recall on this, but I wouldn't hold your breath.
The light only means that the ABS module isn't working at that moment, though. Your brakes will still work fine so as long as you don't lose traction on slick road, you can ignore the (albeit annoying) brake lights.
See sources and related links below to lookup Ford Windstar brake light lamp part numbers by vehicle year.
above brake pedel behind fuse block
brake light bulb out
The battery group is 65N for a 2003 Ford Windstar
If the red " BRAKE " light in your dash is on that indicates that either your parking brake / emergency brake is on , or the BRAKE FLUID LEVEL in your brake master cylinder ( located in the engine compartment ) IS LOW
On a 2003 Ford Windstar : The cargo area is behind the rear seat
According to the Owner Guide , Motorcraft High Performance DOT 3 brake fluid ( DOT 3 brake fluid meeting Ford specification ESA-M6C25-A )
exactly where is of 02 oxigen sensor the ford windstar 2003
In a 2000 Ford Windstar : ( DOT 3 brake fluid meeting Ford specification ESA-M6C25-A ) according to the Owner Guide
On a Ford Windstar : I ASSUME since the first model year ( 1995 ) I was looking at the 1996 Ford Winstar Owner Guide and it definately has the high mount stop lamp
2003 Ford Windstar brake light bulb lamp replacement: Purchase the correct replacement brake light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement brake light bulb information. Then consult your owner's manual for the replacement procedure. As simple as it sounds, the owner's manual is the best place to start for brake light bulb lamp 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).
The 3.8 liter V6 engine in a 2003 Ford Windstar has a timing CHAIN