Most likely the brake fluid will corrode and eat-away the seals on your power steering system.
Brake fluid has a mineral in it that the rubber seals of the PS system can't handle.
If you drive it long enough you'll either get severe leaks, or potentially the pump will seize.
Best advice is to drain the system, fill with proper PS fluid, run it, then drain again.
Get clear fluid if you can so you can tell when the brake fluid is out.
This will likely take a few bottles
My brake fluid reservoir is clear plastic with a thread on cap , there is no dipstick ,
there is a maximum fill mark on the white plastic reservoir
Replace the line that is leaking, and do not try any stop leak.
It will reduce the boiling point so much your brakes will quit working after a few stops.
The Drum is bad and needs to be fixed asap. Seriously. I lost my brakes because of that and almost t-boned another car. Get it fixed. Forget the cost. The brake cylinder could be leaking more than likely.
it is in the front of the car in the spare tire well.
it sits behind the spare tire along with the windshield washer fluid
Could be the master cylinder, booster, or the brake cylinders. If the pistons in the wheel cylinders are jammed up, you don't have any braking on that wheel at all. Does the pedal stay steady when you hold the brake down? If not, it could be a leaking master cylinder. With power brakes, if the booster isn't working it takes a lot more pedal force to apply brakes than you expect, which would also lead to long braking distances. Another thing to look for is the brake pads/shoes or rotors/drums have not glazed over. The effectiveness of the braking action will be greatly diminished with either surface being glazed - rough up the pad surface, or have the rotors lightly turned. On a similar thought, if the pads / shoes have become contaminated with grease, oils or similar, they'll need to be replaced.
Disconnect brake line at the nearest junction
Disconnect brake line at the affected wheel cylinder
Route new brake line same way old one was
Connect both ends
Bleed the wheel cylinder on that line
MAKE SURE MASTER CYLINDER DOES NOT RUN EMPTY
Master cylinder reservoir should be located on the firewall at the driver's side under hood
There is no need to reset it there is way to reset it if the valve is a problem it has to be replaced I think there is another problem but I have no way of knowing what it could be
There is a temporary solution. It's additive you can get it in AutoZone. It's highly recommended brake leaks as soon as possible by replacing gaskets and/or hoses.
DOT ( 3 ) or DOT ( 4 ) brake fluid , according to the Owner Guide
In a 1999 Ford Taurus :
( DOT 3 brake fluid meeting Ford specification ESA-M6C25-A )
Underneath drivers side ac cabin air filter remove filter and remove the housing it's right under there