Hvac Door Actuator Part # Help

[cino72]

2014 sierra slt 4x4

The driver side HVAC is not getting cold but the passenger side is working as expected.  The driver side is blowing warmish air like the actuator is partially closed\open. I was going to order the part but I cant figure out which part number is correct.

I have seen reference to all three parts for this problem

15-74347

15-74348

15-74349

Tia

[rav3]

See if this helps

https://youtu.be/h2EoWp-mxtk?si=IPjzQfPJWTPOWIdk

[mikeyk101]

Have you tried doing a reset because sometimes the actuators can get out of sync and have the problems you are experiencing. I have seen other threads here about doing that and will post a link if I can track one down.

[mikeyk101]

Ok, I found this in another post:

 

2014 GMC Sierra Denali

 

Symptom: On full blast AC mode, driver's side luke warm or hot, passenger side cold.

 

Resolution

1. Turn ignition and power off

2. Remove negative battery cable

3. Remove fuses 35, 55, & 56 from BMX fuse panel "inspect them"

4. Wait 5 minutes...

5. Reinstall fuses 35, 55, &56

6. Reconnect negative battery cable

7. Turn ignition back on

8. Don't touch HVAC controls for 3 minutes.

9. Test Driver vs Passenger side temps

 

I would think that the pulling of fuses are overkill and just removing the negative cable from battery would be enough but fuse pulling is listed as a step.

 

Also, did you recently have a dead battery or change yours out? This issue seems to be common after having battery problems.

[cino72]

Thanks for the replies. I will try the reset procedure before i got to much further.

 

I have not had a dead battery or anything recently