i bought a 1990 infiniti q45 a year ago. i had a used motor put in and it runs okay but not the way i feel it should be. the motor runs loud. so i am sceptical about the ccar. anyways. my heater on the 2 vents on the dash by the door if you put your hand by them you can feel warm air so i dont think the heater core is bad. but the heater will not blow the air and is not defrosting or heating up the car. what coudl be the problem
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