thoiroi27 2/1/2012check for the clips both side these clips are on the flexible hose and these hose lead to the caliper it use 10mm bolt. i think someone may over tie. uncrew couple turn or may be more and try brake see that release the pressure. this problem happen to me 30 year ago it take me 2 moths to find the problem
good luck hope this is your problem. I am 100% this is the problem
monteur 2/1/2012I would advise you to replace the flexible brake hoses on both sides.Because of the age of the vehicle these flexible hoses tend to swell on the inside so that they restrict the flow of brake fluid back to the master cylinder.This keeps the pressure in the calipers causing the brakes to lock up.