Loose connection?
Stripped fitting (cross threaded or overtightened)
Broken brake line?
Check the master cylinder first.
need diagram of rear brake lines for 1993 mercury topaz
Make sue brake fluid reservoir at top of master cylinder is filled to proper levelMake sure parking brake is fully releasedAnswerMake sue brake fluid reservoir at top of master cylinder is filled to proper level Make sure parking brake is fully released
take it to a dealer
there is a brake light fuse in the pannel you just need to look for it.
try the cool line fitting from the radiator to the transmission i just had that problem on a 1994 mercury Sometimes you can leak out of the tailhousing of your transmission if the housing seal is slightly damaged
After the tire has been removed, this process is rather simple. You need to remove the hoses feeding brake fluid to the caliper. You will also need a hex key to remove the two to four bolts holding the caliper on. Once this is done, attach the hoses and/or lines to the new caliper, put the brake pads back on, slide over the rotor, and reattach with the two hex bolts. Be sure to add enough fluid and bleed the brake system before driving.
your question is a little vague. If you are refering to the parking brake, if it is a pedal style brake, once it's set, you push down on it again to release.
If you are replacing the brake lines ( metal ) then just use your better judgment. They do not have to follow the original route.
Knight Rider - 1982 The Topaz Connection 1-16 was released on: USA: 28 January 1983 Finland: 1 March 1984 West Germany: 1 October 1985
Do this OUTSIDE and be very careful!!! With the engine running, spray a litle starting fluid on vacuum lines that you suspect of leaking. Use short shots and don't let the fumes build up. That stuff is very flamable and is very dangerous if you get too much built up around a spark. Spray it on potential vacuum leaks and when you hit the place that IS leaking, the engine will speed up and/or run differently. Don't forget to check the vacuum assist brake and the intake manifold gaskets. But again, don't let the fumes build up. Use carb cleaner instead of starting fluid. It is not as volatile.
Dexron 3 will do just fine.