2004 Highlander V6 3.3L
106k
no codes
So the AC blows nice and cold, but while it’s on there will occasionally be a little “eee” sound under the glove box (like something electrical is working) followed by hot air for a few seconds and back to ice cold. There has been a dripping sound coming from under the glove box area for a while now before this started. I kinda wrote it off as moisture since I wasn’t losing any refrigerant. Just wondering if anyone knows what I should be looking for before I go down there and try to see what is actuating and causing it to momentarily switch to heat. Thank You!
It sounds like your blend door is going funny in the head. The problem is likely in the electronics which would require a good bidirectional scan tool for diagnosis.
