Chevy Blend Door Actuator Calibration

If there is still a problem the actuator for the temp blend door may have failed.

Chevy blend door actuator calibration.

Scan the hvac for codes. I have cleaned up the original actuator and it worked fine for 6 to 8 months or so. This grind or click sound is actually the plastic gears stripping inside. Gmc yukon and chevy tahoe blend door calibration.

Parts counter people call this the upper actuator. On the gmc acadia and the chevrolet traverse the replacement part number for the blend door actuator is 15 73989. A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit. Ignition off pull the hvac ecas fuse for 10 seconds reinstall and start vehicle without touching any controls wait 40 seconds for the control module to self calibrate.

The topic of how to perform the actuator recalibration procedure on chevrolet gmc and cadillac trucks and suvs has become an ever increasing topic of discussion. In this video we look at my 2004 gmc drivers side blend door actuator. For manual systems it does not matter where the a c controls are set but if you feel the need to do something turn the blower switch on i prefer speed 3 and set the temperature. This actuator assembly might fit a few other models but double check the part numbers for your car.