heater.. I need a heater its cold!!? Hello, whenever I turn on the heater in my 1991 Gmc sonoma truck, antifreeze leaks all over the passenger side floor. What can I do to fix this, it happened recently when my friend was driving, he accelerated WAY to fast and this is when it started. Now I can't turn the heat on. Please let me know how much it will cost to fix also, or if this is a big problem.
