A/C and heater only works on passenger or drivers side?

Tiny
G_SPERAN
  • MEMBER
  • 5 POSTS
Hello Roy,
Just for clarification I have two questions.

1) The video link here from 2carpros does not apply to me as it looks like that this is for the passenger side, correct? https://m.youtube.com/watch?v=tY6M92fA2ug

2) The image you attached, you said that that is for the left side (driver side) correct? This additional link from 2carpros, shows that the image is the right side. Can you confirm/deny? https://www.2carpros.com/articles/replace-blend-door-motor

Thank again for your assistance.
Gary
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
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1. Does not apply to you.

2. Correct that is for the right side, not the left.

You are welcome.

Roy
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
G_SPERAN
  • MEMBER
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Hello Roy,
Wondering if this is correct? If so, I will order it and once i get results report my update.
https://www.1aauto.com/door-actuator/i/1ahcx00042?f=1079628&y=2011

After I get it in, do I need to perform a re-calibration? If so, in the steps that you provided way up top, I do not have a HVAC/ECAS fuse. See attached.

Thanks a million again,
Gary
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
ASEMASTER6371
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Yes, the calibration.

Fuse 39 as marked AC.

Roy
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
JAKEWILL41
  • MEMBER
  • 2 POSTS
  • 2010 CHEVROLET SILVERADO
  • 4.8L
  • 90,000 MILES
My truck's passenger side heat has gone out and is stuck on cold. It does not matter if you change the vent selected. It is a digital HVAC controller with independent driver/passenger temperature settings. I have tried the fuse trick and it only worked for a few days. I think I need to replace a blend door but are there multiple doors? What is my fix here?
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hello,

It does sounds like you have a right side temperature blend door actuator that has gone out.

Here is a video and guide to help you get the job done:

https://youtu.be/tY6M92fA2ug

and

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

The one one want to change is the bottom (easy) one. You are so lucky!

Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
JAKEWILL41
  • MEMBER
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Thanks for the help Ken, I appreciate it! So I just need to replace the one blend door behind the kick panel and I should be good?
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Yes, should be good to go. Please let me know.
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Friday, April 30th, 2021 AT 11:46 AM (Merged)
Tiny
BRIAN LEE FOUNTAIN
  • MEMBER
  • 1 POST
  • 2009 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 147,000 MILES
No heat on passenger side automatic control and air blows cold on passenger on each setting but is working on drivers side.
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Friday, April 30th, 2021 AT 11:47 AM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try pulling HVAC fuse first it resets them and may work then. If not these are a pain to replace as air bag has to be removed for access so that means the system has to be charged down in order to remove the air bag
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Friday, April 30th, 2021 AT 11:47 AM (Merged)
Tiny
CCASPER76
  • MEMBER
  • 2 POSTS
  • 2009 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 178,000 MILES
The A/C temperature on the driver side does not go cold when adjusting the temperature in the dash. I can turn the temperature up and it will get hotter but it stops at warm instead of going cold. The passenger side will adjust up and down with no problem from hot to cold air. All mode doors work when switching from defrost to center to feet. I’m assuming it’s the drivers side actuator that is bad but I don’t have any clue where it’s location is. Any help would be great.
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Friday, April 30th, 2021 AT 11:47 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

It will be located under the dash on the HVAC box. It's actually easy to replace.

To get you started, here is a link that shows in general how it is done. You can use this to help guide you.

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

If you look at the picture attached below, it shows the directions/picture specific to your vehicle for replacement.

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

Take care,

Joe

See pic below.
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Friday, April 30th, 2021 AT 11:47 AM (Merged)
Tiny
CCASPER76
  • MEMBER
  • 2 POSTS
Thank you very much. Is there going to be one for passenger and one for driver? I’ve read that there is another one near the gas pedal that is for the drivers side.
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Friday, April 30th, 2021 AT 11:47 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

Yes, there is one for the right side as well. It is more difficult to replace. I attached the directions below for replacing it. (Pic 1)

Also, pic 2 shows the recalibration procedure when you replace it. I forgot to add it the first time. Note: The recalibration shows doing it with a scan tool and without the scanner.

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

Take care,

Joe

See pics below.
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Friday, April 30th, 2021 AT 11:47 AM (Merged)
Tiny
RSTELLA2010
  • MEMBER
  • 1 POST
  • 2008 CHEVROLET SILVERADO
The air conditioner in my truck 2500 Crew Cab Duramax Diesel started blowing hot air from the passenger side vents while blowing cold from the driver side while I had the air conditioner on. I tried changing the functions to defrost and other vent positions but it continued. After turning the A/C off for some time it worked correct when I used it again. This has repeated a few times in the last week.

Today I drove to the snow and turned on the heater (with no A/C) and the passenger side was blowing ice cold but the drivers side was blowing hot air. Again I tried various vent functions and the air flow remained the same, hot on drivers side, cold on passengers.

Air force seems to be fine, the car just cannot get the temperature correct. It seems to have a mind of its own.

The vehicle is no longer under warrantee and funds are tight. I would love to fix this myself but if I have to take it to a mechanic I would like to have an idea what to expect in order to "keep the mechanic honest".

Hoping you can help, Robert
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Friday, April 30th, 2021 AT 11:47 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Hey Rstella2010,

This is a classic blend door actuator problem which you can fix easily. Here is a guide that will show you which one to change and how to replace it:

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

Please let us know happens so it will help others.

Best, Ken
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Friday, April 30th, 2021 AT 11:48 AM (Merged)
Tiny
DAVIDCAIN
  • MEMBER
  • 1 POST
  • 2006 CHEVROLET SILVERADO
  • 6.0L
  • V8
  • 4WD
  • 195,000 MILES
Blows hot air on drivers side and cooled air on passage side.
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Friday, April 30th, 2021 AT 11:48 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
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Good morning,

Are you in heat mode or AC mode?

There are blend door actuators that control heat/cool functions and need to know what you are commanding.

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

I assume dual controls?

The left door is under the dash by the center. you need to remove the console if you have one.

The right door is on top of the heater case. the entire dash has to be removed to access this one.

Roy

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+1
Friday, April 30th, 2021 AT 11:48 AM (Merged)
Tiny
REECE PLAISANCE
  • MEMBER
  • 1 POST
  • 2006 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
My air conditioner blows hot on the drivers side sometimes. What is the part number I need for the actuator? Wheres is its location?
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Friday, April 30th, 2021 AT 11:48 AM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
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It is in front of the console and the console will have to be removed if it has one.

https://www.2carpros.com/images/external/119071080.gif
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Friday, April 30th, 2021 AT 11:48 AM (Merged)

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