good day po mga bossing, meron po ako problem regarding my corolla GL 1990 4af carbed engine, meron whistling and squeaking sound kung mainit na ang makina around 5-10km natravel. ung temp guage half lang po lagi. another thing, malakas magbawas ng tubig rad, pati overflow container ubos.

suspect ko is ung thermostat, waterpump, at radiator ang problem...please help me naman po mga bossing...thanks in advance!!!