fiesta brakes

could be a caliper, but probably a hose coming from the caliper that is messed up inside and holding the pressure on the one wheel....the hose is acting like a one way valve when it breaks inside and lets fluid go one way and not back in... kinda like a check valve?????? find out what wheel is doing this, jack up that side and try to spin the wheel.. if it done move then you take off the tire and crack open the bleeder valve and let the fluid drain out and then spin the wheel.. if it moves then that is the wheel.. also check the caliper pins to see if the caliper can slide back and forth like it should...

by front wheel brakes, do you mean both front wheels, or just one side?

If both, it is likely that the master cylinder has seized. If this is the case, you can normally get away by unbolting the master cylinder from the brake servo and brake pipes. If it has sezied it is likely the back of the master cylinder will be rusty, and preventing the plunger from returning under spring presure. You can normally get away with cleaning the rust out and putting some silicon grease (normal grease will swell the seals and cause them to fail) in the back.

If only one side has seized it could be any number of things. Could be a seized caliper, a flexi hose that's broken up inside and is acting like a one way valve, pads stuck in caliper

its both wheels

its unseized itself and is running fine again....

think i will take the master cylinder apart though and just make sure

cheers for the help!