1986 Subaru GL • 4 cylinder 4WD Manual • 230,000 miles

I have a 87 subaru gl wagon that has been overheating I have replaced the water pump, thermostat, radiator with upper and lower hoses. I also replaced the by pass hose. I am still overheating and sometimes when I shift gears I can hear water moving through my dash. Could the reason for the overheating me maybe the heater core and heater hoses, or worse head gasket?
January 18, 2011.

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