In reply to SteveF.

Yea, not a problem at the moment. I'll wait for it to act up again but meantime figure out what has to come apart/how and get fixed. The volume of air is fine, it's just slightly higher temperature, for now. Still plenty cold.

Heat in a car around here is mostly useful for screwing up the air conditioning :)

Except when it's needed. Back around 2013 when I still had the '93 Suburban, the heater coil went bad and started leaking. I routed around it temporarily, meaning no heat. I drove up I=81 (mountains) to Virginia one January morning and discovered my fingers were getting numb. Another fun thing about getting older...