Heater Core Replacement
Panels Removed, Heater Core Visible
One cold, rainy day, I was driving my Mustang back from work. When I
decided to use the defroster on the windshield, I smelled anti-freeze
then the windshield fogged up more. Guessing that maybe there
were some condensation inside the heater assembly, I turned the heater
on to "evaporate" the moisture, but the fogging got even worse.
Ugh, looks like it's time to replace the heater core...
The Old Heater Core
This is a view of the back side of the old heater core. You can see
the flow of the leak by following the calcium deposits and discoloration.
This was not visible on the front side, the side facing the passenger
compartment. There were drips of anti-freeze on both the inside and
outside of the heater assembly. That's where the smell came from!
