Could the heater core be a problem for the car overheating.my car keeps over heatin i check my head gasket and radiato hoses and also my thermostat but car still over heats. but i found that my antifreeze was leaking inside of the car

Could be a blocked heater core. Could be a head gasket or a warped head or block if it got to hot at one time.

This is the primary cause of engine overheating. Possible leak points include hoses, the radiator, water pump, thermostat housing, heater core, head gasket, freeze plugs, automatic transmission oil cooler, cylinder heads and block. Perform a pressure test.

Common Causes of Overheating ' ASC Industries, Inc.

asc-ind.com/cooling-system-information/common-causes-of-overheating/ https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=engine%20overheats

Blocked cooling system most likely a stuck thermostat. The coolant is not circulation therefore not getting to heater core. Replace thermostat and it should be fixed

Fill the rad or overflow bottle right to the top and run the engine with no cap on,if you see a constant flow of bubbles your head gasket is leaking or you have a crack somewhere in the cooling system.

Have you checked to see if your fan is working ?
After performing your repairs, did you bleed the coolant system ? One way is to run vehicle with heaters running to make sure that air in the heater core / hoses is bleed.

YOU NEED TO FLUSH THE RADIATOR AND CYLINDER BLOCK AND HEATER CORE.CHECK ENGINE OIL IN CRANK CASE IF LOOKS LIKE MILK SHAKE YOU HAVE A BLOWN HEAD GASKET.WHICH WILL CAUSE ENGINE TO OVER HEAT.

ENGINE NOT GOING TO START IF GET TOO HOT FIRST THING I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP THEN ADD COOLANT UNTIL COOLANT LEVEL CORRECT THATS WHEN THERMOSTAT OPEN UP AND TOP HOSE HOT.CHECK FOR LEAKING RADIATOR HOSES CHECK TOP RADIATOR HOSE CHECK BOTTOM RADIATOR HOSE.CHECK FOR LEAKS AROUND THE RADIATOR LOOK DOWN BELOW COOLANTS FANS CHECK FOR LEAKS AT RADIATOR CORES OR LEAKS AT THE RADIATOR PLASTIC SIDE CONTAINERS. CHECK FOR LEAKS AT WATER PUMP WEEP HOLE AND CHECK FOR LEAKS AT THE HEATER HOSES AROUND ENGINE BLOCK TO THE HEATER CORE HOSES. THERE IS A REASON CAR OVERHEAT.IF CAR OVERHEAT WHILE DRIVING YOU HAVE FAULTY THERMOSTAT OR LEAKING OUT COOLANT OR BLOWN HEAD GASKET.IF ENGINE OVER HEAT WHILE SITTING DURING A LONG IDLING PERIOD.YOU COULD HAVE FAULTY COOLANT TEMPERATURE SENSOR OR FAULTY COOLING FAN FUSE OR RELAY.HOT WIRE COOLANT TO SEE IF IT RUNS IF NO REPLACE FAN MOTOR. IF YES FAN MOTOR COULD HAVE FAULTY WIRE OR PCM FAILURE. CHECK ENGINE CRANKCASE IF OIL LOOKS LIKE MILK SHAKE ENGINE HEAD GASKET LEAKING.

Check and see if the Thermastat is stuck closed.

1 how is it overheating ?

2 check the heater core see if it is pluged

3 what color is it in the radeaidor

4 check to see if any of your hoses are squeezeing together

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