adambombsaway

seems the voltage issue is the least of my problems now. Yes I went to pep boys to have my coolant system flushes and they wouldn't touch it due to the antifreeze looking like "chocolate milk", and said possibly have a blown head gasket which I don't see very likely because the oil is always clean not "milky" when I change it and the engine tempnever reads even 1/2 it's barely above low. The only physical issue is the very loud screech and the voltage dropping way down to nothing I'd I go from stop to go with my heat on, but that stops as soon as I turn my heat off and back on once I reach about 10-15 mph. From my very uneducated auto repair knowledge a bad head gasket or cracked head ALWAYS leads to over heating. Am I wrong here? Should I flush the system myself? I bout some head gasket and block repair but I won't be able to use it because I have to allow the initial flush dry for 12 hours which won't happen in 0-10 degree weather. could I cause more damage? IDK WHAT TO DO HELP ME