Hello, I just drove my '99 Taurus for about three hours. I topped off the coolant before I left and had no abnormal gauge reading along the way, but when I pulled into a parking lot and stopped the car, it leaked a huge puddle of what I can only assume is coolant/water and I could hear the whistling of air under pressure escaping. Do I have a blown head gasket? I feel like my temperature gauge is broken because it gave me no indication of high temperature on the drive. If there's something I can look for to indicate what went wrong that would be very helpful.
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