Our Community is 940,000 Strong. Join Us.


AC Actuator bad. RH air hot, LH cold


rollytan
08-19-2008, 05:00 PM
Was told AGAIN, that an actuator was bad on my 2004 suburban. LH side cold, RH side Hot. Each actuator (5 of them) 275 + 500 labor. Any way to convert to a manual climate control module? Will it even work?
2004 Suburban LT.

thanks!

MT-2500
08-20-2008, 02:54 PM
If you have it you are stuck with it.
What code no does it have for the problem?
Has it been recalibrated?
MT

briand069
08-20-2008, 08:24 PM
I have a 2003 Suburban that does the opposite... Drivers side goes hot and passenger stays cold. Usually I have to shut the vehicle off and restart for it to start working. Here's a Tech Bulletin on it. I think this might be my problem because the other day it started doing it again and I opened and slammed the glove box shut and it started working...I've just been to lazy to really look. :)


Bulletin No.: 04-01-38-008

Date: June 17, 2004

TECHNICAL

Subject:
HVAC System Cannot be Controlled or Defaults to Defrost Mode (Repair HVAC Actuator Harness)

Models:
2003-2005 Cadillac Escalade, Escalade ESV, Escalade EXT
2003-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2003-2005 GMC Sierra, Yukon, Yukon XL

Condition

^ Some customers may comment that they cannot control the HVAC (heating, ventilation and air conditioning) system. Others may comment that the HVAC system defaults to the Defrost mode.

^ Technicians may find that the following diagnostic trouble codes have set:

^ B0229 Recirculation Actuator

^ B0414 Left Air Temperature Actuator

^ B0424 Right Air Temperature Actuator

^ B3770 Mode Actuator Cause



The HVAC actuator harness may contact a sharp edge on the instrument panel support brace, causing a rub through condition and a ground out of the actuator control and/or feedback circuits.

Correction

http://i70.photobucket.com/albums/i114/briand069/108779898.gif




Locate the HVAC actuator harness contact point shown by the arrow in the above illustration. The illustration is of the instrument panel with the instrument panel compartment door opened and folded downward. The actuator harness is located in the left side of the opening in the instrument panel.

Technicians are to inspect the HVAC actuator harness for contact with the instrument panel support brace. Repair any damage to the actuator harness wiring and install protective plastic conduit over the harness. Install friction tape over the sharp edge of the instrument panel brace. Clear the diagnostic trouble codes and verify proper HVAC system operation.

Warranty Information

Add your comment to this topic!