i think you have air on the cooling system. get the car on a good angle "hill, jacks , what ever" and run the engine so you can release the air inside the engine and radiator hoses. make sure that its the nose that you will put facing up. hope it works. good luck
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Nice 87 Supra, Pearl white, targa top, 5 spd, 7mgte
ARMY STRONG !!
La fiebre Boricua Puerto Rico!!!