Question:
A car's heater core can be diagnosed if you notice any of the following:
- No heat coming from the heater vents
- Sweet or musty odor inside the car
- A puddle of coolant/antifreeze on the floorboard of the passenger side
- The windshield fogs up when the defroster is turned on
If you experience any of these issues, it may be an indication that the heater core needs to be replaced.