Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Car overheating. I’ve tried everything I know how to do but it’s still overheati › Car overheating. I’ve tried everything I know how to do but it’s still overheati December 6, 2019 at 5:49 am #895419 Richard KirshyParticipant If there is a blockage in the heater core, it could be there is a blockage with in the radiator also. The two share the same basic design.