[dcrolin]

Hello All...I had something really weird happen the other day and I thought maybe someone here has some insight... I own a 91 Rex Si MT w/77k miles, everything is stock...So anyway, the other day I decided to turn on the air (which I've only done once since I bought it 1.5 yrs ago) and drove it for about 30 highway miles...then when I turned off the A/C and went to brake, my brake pedal gradually sunk to the floor...luckily I only had a few more miles to home. I pumped the brakes to build vacuum, but it didn't help. the next day I got in it and the brakes work totally normal.....ANY IDEAS...Thanks for any input.