I recently bought an 85' Seville, gorgeous car. In great condition however lately noticed after the cold left that the brakes were still doing their off and on spongy deal. I know that if the pedal floors and the park brake isn't catching at all its a need for caliper rebuild but its not consistent. The park brake has worked and though I have not used it lately to remember I know it did work recently enough. With the the brakes are generally fine and I have no spongy BS for the most part. When the pedal does completely go down its all the way but with the normal resistance. My educated guess would be that there is for sure some air in the damn lines and I need to bleed them. No there is no line leaks either I checked. Ranger or Carnut fill me in on if I am right or in the realm of being correct. I am hopeful its just a need to bleed. I could do the rebuild myself with some major stubborn effort but rather not if able to avoid. All help is hugely appreciated, you guys have been awesome with aid in the past. Thanks.