As usual, a video of something I was doing in the first place, and you all get to follow along and learn for yourself. Yes, you can no doubt change a 1999-2004 Jeep Grand Cherokee heater core in under an hour. Maybe longer being your first time but it is not that bad. This video is actually about the dual climate and blend doors; however, I show the needed steps for heater core changing. Hope this helps you along the way doing yours!! -Dex
First Video - • How To Change Your Jeep Grand Cherokee Hea...