So I was driving home this evening, and it was a bit chilly.
Cranked up the heat, seemed like air barely moving out of the vents.
Made sure the dial was set to passenger air (upper registers, no feet, no defrost). Turned fan speed to HI and still barely coming out. Tried all the different register settings, still weak.
THEN I adjust the temp gauge...on cold blowing (or up to "TEMP" aka middle setting) blowing strong, but as soon as I turn to hottest, it's very weak.
Checked all the registers, blows strong. Doesn't seem to matter if cabin air is being recycled or not.
I can hear the "gate" or whatever inside moving/adjusting to direct heat, but heat is still blowing weak