Nissan Sentra Heater Core Replacement....How Hard Can It Be?

Yes, we are re-visiting the 2003 Nissan Sentra with my son. No sooner did we re-build the interior than we had to tear it apart to replace a heater core that had a small leak. Oddly, there are not many videos on this process.....likely because the repair would cost more than the car. But though this is not a step-by-step, it does show the overview. Thanks for watching.