2002 Tahoe groaning noise from passenger side behind lower part of dash.

[Kmapesii]

I had temperature issue with my a/c and heater control. sometimes would stay stuck on heat. Then i started getting a groaning noise behind the dash on the passenger side. I replaced the temperature mode actuator. Seems to have fixed the temp issue. Noise went away for a few days and now is back. Could i be having another actuator going bad? No notice of any other symptoms now other than the noise.

 

[Blakesdad]

Don't know answer, but will be looking at this thread for a good answer. Its a common problem that I have and a buddy has also

 

[dominer]

there are two actuators within the dash.... one for the temp control, and one for the Fresh air/ Recirc door. Could be that making the noise, but generally they will make a "ticking" sound when going out and it would be rare for both to go at the same time, but anything is possible. I just replaced my temp actuator and while I was in there, changed the recirc/fresh air one as well just because I didnt want to have to go back in there and take another two hours to get to it.