Issue is finally fixed.
I replaced the used OEM rotors, pads, left side (aftermarket) caliper and (aftermarket)hose, and determined it was either the aftermarket caliper or the aftermarket hose.
All parts are now OEM, and the issue is resolved.
I will note the aftermarket hose was shorter than the OEM, and was slightly bent at the connection to the caliper most likely due to turning to the left. The OEM hose install was so much easier than the aftermarket. I installed both the OEM caliper and OEM hose at the same time. I just wanted the van fixed, and didn’t want to bled the systems twice.
This update is a bit late, but i don’t drive the van all that much, and before posting i wanted to make sure the van was fixed.
Thanks everyone.