Learning how to do stuff online is great
But all the ways they were showing me to bypass rear heater core was more work and more money I did it for free. Just took the hose off and the line underneath the van directed it into the other line done. Already replaced front heater core and the blower motor and the water pump. All those things in the last few months. Don’t really need rear heater core, so I just bypassed it. Always something. At least I didn’t have to take off the entire dash replaced front heater core.