I worked on the Mustang today repairing and getting my heating and defrosting system back up and running. So why go through this? Car is a street rod and I only ride during the summer season. WRONG! I can go without a heater for warmth but driving at night at near freezing temps and fog your windshield is constantly getting condensation even with the windows rolled down. I had to drive 2 hours like that using a towel to wipe a spot clean every so often and this is coming down from the mountains on twisted 2 way lanes.

Thought it would be a cheap reassurance the next time the situation popped up. Parts were cheap the labor is what took me so long. I estimate over four hours of work, mostly because I’m so big it’s hard to get under the passenger dashboard area. Luckily it’s not the driver side with the steering wheel in the way.

The original heater core was definitely leaking so it was a good call to just get a replacement. Looking at the aluminum heater core I’m guessing it was replaced before. The original cores back then I believe were made from brass.