This grind or click sound is actually the plastic gears stripping inside.
2005 chevy silverado blend door actuator recalibration.
It only applies to the temperature door actuator.
On the gmc acadia and the chevrolet traverse the replacement part number for the blend door actuator is 15 73989.
An actuator can go bad in of two ways.
When heat is built up inside of the heater core the actuator door shifts to allow the hot air through the system and when the climate control is turned to cool the door flaps in the other direction closing off the heater core.
First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.
There is a replacement mode or blend actuator available at most auto parts stores dorman part 604 107 price 39 99.
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.
Gmt604 wrote when you reconnected the battery and started it it would have run through the self calibration but you can try it again 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.
4 6 out of 5 stars 327.
Okay the only recalibration procedure is for a system that has auto controls.
If your vehicle has manual controls a recalibration is not possible or needed.
Air door actuator replaces 15 73952 52495593 89018374 604 112 compatible with chevy gmc cadillac hummer 2003 2014 models hvac blend control actuator air heater blend door.
Parts counter people call this the upper actuator.
The mode door actuator is on the left and the resirc door actuator is at the top of the dash near the windshield.
Amazon s choice for 2005 chevy silverado blend door actuator.
This actuator assembly might fit a few other models but double check the part numbers for your car.
If you happen to have auto controls the temperature door recalibration is performed as usual but the fuse will be labeled rdo batt.