Blend door actuator replacement

I think you just got a faulty actuator. I would think something different if this exact same thing didn't happen to me. Straight out of the box it was fine, then my sister in law calls me 20 minutes into her trip home and says it is clicking. I would replace it again and I suspect it will be just fine.

I attached the manual process for your review or others if they visit the site.

Also, here is a guide that will help as well:

https://www.2carpros.com/articles/replace-blend-door-motor

Let us know if you have other questions. Thanks

Because the actuator has to be re calibrated.try this first,Clear all DTCs.
Place the ignition switch to the OFF position.
Install the HVAC actuator.
Connect all previously disconnected components.
Remove the HVAC/ECAS fuse for a minimum of 10 seconds .
Install the HVAC/ECAS fuse.
Start the vehicle.
Wait 40 seconds for the HVAC control module to self-calibrate.
Verify that no DTCs have set as current DTCs.

This guide should help us fix the problem as well.

https://www.2carpros.com/articles/replace-blend-door-motor

Please run down this guide and report back.

Diagnostic trouble codes. DTC. What problem are you having?

This is going to sound like a Homer Simpson DOH! Answer, but: The one for the passenger side. And, to be honest, it sounds more like the blend door than anything else. It also sounds like you may have sucked some leaves or something into the ductwork which is causing that reduced flow you mentioned. Which could also contribute to that temp difference.

Try this: Turn off every other noise source in the truck. Start it up and move the actuator levers or dials around slowly. Listen for the doors and actuators moving carefully. If one is sticking or not opening or closing properly, you should be able to tell the difference and pinpoint it.

Hey BLACKBEARD92,

Can you send a picture of where the break is?

I would say if you want to repair it your best option may be to epoxy it back together.

Epoxy resin adhesives cure to be very strong and should be good enough to keep it together.

Regards, Joe

It sounds like you have a blend door actuator that has gone out. Here is a guide that has a video that will help you fix the problem.

https://www.2carpros.com/articles/replace-blend-door-motor

Please let us know what happens.

Cheers, Ken

You should not have turned the key on with blend door actuator out try lining up now then turn key on and pull HVAC fuse inside truck for sixty seconds then reinstall it may reset if not then you need another actuator.

Hi and thanks for using 2CarPros. Com.

Here are the directions for removal and replacement of the component direct from Alldata. Let me know if it helps.

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2002 GMC Truck C 1500 Truck 2WD V8-4.8L VIN V
Vehicle  Heating and Air Conditioning  Air Door  Air Door Actuator / Motor  Service and Repair  HVAC System - Manual  Mode Actuator Replacement (W/ D07)
MODE ACTUATOR REPLACEMENT (W/ D07)
REMOVAL PROCEDURE
Remove the floor air outlet duct extension (1) from the floor duct (2).
Remove the center console.
Remove the screws from the center console duct.
Remove the center console duct.
Disconnect the electrical connection from the mode actuator (10).
Remove the mode actuator mounting screws from the HVAC module.
Remove the mode actuator as an assembly with the actuator cam.
INSTALLATION PROCEDURE
Install the mode actuator as an assembly with the actuator cam.
Line up the heater/defroster valve lever with the mode actuator cam slot.
Line up the A/C valve lever with the mode actuator cam.
NOTE: Refer to Fastener Notice in Service Precautions.
Install the mode actuator mounting screw to the HVAC module.
Tighten
Tighten the screw to 1.6 N.M (14 lb in).
Connect the electrical connection at the mode actuator (10).
Install the center console duct.
Install the screws from the center console duct.
Tighten
Tighten the screw to 1.6 Nm (14 lb in).
Install the center console.
Install the floor air outlet dud extension (1) to the floor air duct (2).

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I hope this is helpful. Let me know if you have other questions.

All the air control doors are operated by electric actuators so you will have to access them and determine why they are not working properly.

You should be able to access it under the dash or behind the glove box on the passenger side

https://www.2carpros.com/articles/replace-blend-door-motor

let me know