Where is the blend door actuator located?

2013 CHEVROLET 3500
199,300 MILES • 2WD • AUTOMATIC
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OWEN.CALLAHAN84
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  • 1 POST
What blend door actuator do i need to change if the cold air is only blowing out from the defrost and the floor? And where is it located?
Jul 13, 2023 at 4:30 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
That would be the mode door not a blend door. It is on the end of the HVAC housing above the drivers footwell. You need to remove the knee bolster under the steering wheel, then remove the floor duct that attaches at the case. Now you can get to the actuator at the end of the case. Replacement is to just remove the screws and swap the actuator. Then you need to reset the actuators. With a scan tool this is easy, without one you need to pull the HVAC/ECAS fuse and keep it out for 20 seconds at least.
Now install the fuse and turn the key on and start the truck. Wait about a minute while the actuators recalibrate. Now test the operation of all the actuators.


Jul 13, 2023 at 6:12 PM
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