Beginner’s Guide: What Is a Car’s Heater Core and What Does It …
https://haynes.com/en-us/tips-tutorials/what-is-car-heater-matrix
webApr 21, 2022 · If you imagine that a heater core is pretty much a smaller version of the radiator that's out front in your car, then you won't be far wrong. However, instead of being used to cool the coolant in the engine, it uses the heat from that same coolant to warm the car’s interior. It works, in essence, by diverting coolant from the rest of the car ...
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