The easiest way to do it is to open the bleeder screw and force the caliper open that way. You will have to bleed afterwards, but it would be dumb not to bleed brakes after a brake job. The fluid is more important than the pads in my opinion. You should flush all the old fluid out, then run some rubbing alcohol through the system to get any water out of the lines, then put brand new fluid back in. You are actually suposed to cahange youf brake fluid at least every two years. Every one with the original fluid in there Escort say I. Remember original oil, brake fluid, and spark plugs don´t add to the resale value of your car.