GMC Envoy HVAC actuator Replacement

parts listed below

HVAC actuator replacement on a 2004 GMC envoy SLT with Automatic climate control. After replacing the Blower control module this GMC envoy would only blow air out of the defrost vent, a telltale sign of a faulty Mode door actuator. I show you how to replace an HVAC actuator and Perform an HVAC module recalibration.


Parts:
HVAC actuator (with gear crank):
OEM - ACdelco 1573596 - https://amzn.to/2H9Ik1O
aftermarket - Dorman 604-110 - https://amzn.to/2DYAzcS
HVAC actuator (without gear crank):
OEM - ACdelco 1573598 - https://amzn.to/2Yj9yca
Aftermarket- Dorman 604-120 - https://amzn.to/2YnCShJ



Applies to all vehicles based on the GMT 360 platform which includes:
02-09 Chevrolet Trailblazer
02-09 Gmc Envoy
02-04 Oldsmobile Bravada
03-07 Isuzu Ascender
04-07 Buick Rainier
05-09 Saab 9-7X