HVAC blows on feet only?

BANDITNC

MEMBER
2014 CHEVROLET SILVERADO
5.3L
V8
4WD
AUTOMATIC
165,600 MILES

I replaced the actuator for the blend door actuator because the driver side blew hot. Now I have cold air coming out only on driver and passenger feet and nowhere else even when selected on control panel. This is an LTZ with dual zone.

Which one do I need to replace now.

Sunday, September 14th, 2025 AT 10:21 AM

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
54,137 POSTS

Yep, this happens when the mode actuator goes out, bad timing there, it happens. It is on the drivers side above the accelerator pedal. Here is a guide to help reset the system after the repair:

https://www.2carpros.com/articles/step-by-step-guide-to-reset-your-cars-hvac-system-an-essential-for-every

Check out the images (below). Let us know how it goes.

Image (Click to make bigger)

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Sunday, September 14th, 2025 AT 6:46 PM

BANDITNC

MEMBER
3 POSTS

The problem is solved. I would like to thank you for your help.

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Thursday, September 25th, 2025 AT 11:13 AM

KEN L

MASTER CERTIFIED MECHANIC
54,137 POSTS

Cool! What was the problem?

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+1

Friday, September 26th, 2025 AT 9:12 AM

BANDITNC

MEMBER
3 POSTS

I had originally replaced the actuator on the driver side just above the steering column and so I replaced it based on your recommendation and that was the problem. Kind of weird that it failed so soon.

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Friday, September 26th, 2025 AT 9:46 AM

KEN L