Two middle vents not blowing most of the time
Hi guys, as the title says my two middle vents in my 04 aveo are acting up. The vents on the sides work flawlessly and sometimes the middle ones do too, typically when I first start the fans. It does not matter whether hot or cold, both climates are equally as inconsistent concerning those two vents. I have the blower set to just blow right at me, and other settings don't seem to change the fact that it doesn't work. Occasionally I turn it on and off and upon turning it on again, the two vents start working again, but quickly just stop. I check the filter, cleaned that out and that didn't help! Any answers are thoroughly appreciated, thanks in advance.