Heater Core Leaking Coolant
Heater Core Leaking Coolant . Recheck for leaks and check coolant level. I looked at the connection and it looks like the hose snaps in to the heater core inlet/outlet port/nipple and is secured by a clip. Stop & Seal Radiator & Heater Core Leak Repair from www.walmart.com Oem gm black heater core fitting buy here. The heater core is a small radiator that employs conductive brass or metal tubing and a fan to transmit heat from heated coolant passing through the cooling system to the air in the vehicle’s interior. You may notice a sweet smell from your vents.