Passenger side vents blowing hot air when A/C is on

Tiny
B360853
  • MEMBER
  • 2005 CHEVROLET SILVERADO
  • 4WD
  • AUTOMATIC
  • 78,000 MILES
My truck has dual the cooling controls and the passenger side air blend door actuator has probably failed. Where is it located?
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Monday, June 26th, 2017 AT 1:07 PM

11 Replies

Tiny
KEN
  • ADMIN
Hello,

We have an excellent guide for this.

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

Please let us know what happens.

Cheers, Ken
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Wednesday, June 28th, 2017 AT 5:56 PM
Tiny
B360853
  • MEMBER
Thanks! I have seen that already. I neglected to specify in my question what I was actually looking for.

I understand there are two on my truck. One located 'below' (as your guide shows) and one on top which necessitates the dash removal. Can you tell me which one is for the passenger's side? I would really not prefer to spend the time messing with the bottom one if I am actually going to have to dis-assemble so much to get to the 'top' one.

Tia
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Wednesday, June 28th, 2017 AT 7:11 PM
Tiny
KEN
  • ADMIN
The passengers side is the bottom one.

Please let us know what happens.

Cheers, Ken
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+1
Thursday, June 29th, 2017 AT 10:46 AM
Tiny
B360853
  • MEMBER
Whew! I will let you know when I am done.
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Thursday, June 29th, 2017 AT 1:56 PM
Tiny
KEN
  • ADMIN
Sounds good. :)
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Friday, June 30th, 2017 AT 10:25 AM
Tiny
B360853
  • MEMBER
I went to replace it this afternoon and discovered I will still need to get a lot of stuff out of the way to access it well, but I plugged the new one in to make sure it would operate properly. As soon as I plugged it in, it rotated all the way to the opposite side. I started the truck and tried to get to 'actuate' with all of the HVAC functions and it did not move, let alone the passenger side heat/cool control. My background as a locomotive troubleshooter makes me think that the problem may actually be with the control assembly itself and not the actuator itself. Is there anything else involved in making those actuators 'actuate'?
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Monday, July 3rd, 2017 AT 1:44 PM
Tiny
HMAC300
  • EXPERT
Do not forget to pull HVAC fuse inside truck once it is replaced so it will reset.
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Monday, July 3rd, 2017 AT 3:38 PM
Tiny
B360853
  • MEMBER
The main control unit?
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Monday, July 3rd, 2017 AT 3:47 PM
Tiny
HMAC300
  • EXPERT
The fuse for HVAC inside the truck resets the actuators and must be done after an install.
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Monday, July 3rd, 2017 AT 4:34 PM
Tiny
B360853
  • MEMBER
Turned out it was the top one.
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Monday, August 21st, 2017 AT 2:05 PM
Tiny
KEN
  • ADMIN
Nice work, we are here to help. Please use 2CarPros anytime.

Cheers, Ken
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Tuesday, August 22nd, 2017 AT 10:31 AM

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