I run mine all of the time. But it needs to blow OUT of the left rear vents, not in. It will suck the hot air out of the vent.
If I recall, I set mine to a setting somewhere under full power, trying to find a balance between noise level and airflow. Yes, make sure it is sucking air OUT the left side, not blowing air in.
Sorry for being obtuse, but when you guys mean blow air out the left side instead of in, how do I do that?
I have it placed at the left back vent blowing in, so just turn the fan around right?