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AC blowing cold on one side and hot on the other

 
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dactionjackson09
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PostPosted: Sat Aug 28, 2010 1:35 pm    Post subject:  AC blowing cold on one side and hot on the other Reply with quote

I have an 03 Impala, and for some reason on the drivers side its blowing cold air while the passenger side is blowing hot air. The dual climate control would both be on the coldest setting but its still blwoing hot air on the passenger side. It only does this every once and while, it would go back to being cold like it should by itself. Any idea what this could be? I appreciate anyones help.

DJ
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IffyG
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PostPosted: Sat Aug 28, 2010 1:38 pm    Post subject:   Reply with quote

It's likely to be your blend door or blend door actuator failing to do its job. This should help: http://www.naioa.com/v2/module.....d+actuator

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dactionjackson09
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PostPosted: Sat Aug 28, 2010 1:44 pm    Post subject:   Reply with quote

i appreciate that. I'm def. gonna look into this and get this going. Appreciate that.
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2007SSImpala
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PostPosted: Sat Aug 28, 2010 1:54 pm    Post subject:   Reply with quote

I would think if the blend door or blend do acutator isnt working properly, it wouldnt be blowing air through the passenger side at all. He said its blowing only hot air. Also look into your controls for dual climate control. Make sure there arent any shorts in the switches. Sometimes the contacts on the inside of the switch don't make contact properly, thus resulting in the dual CC to work when it wants to like he was saying. Just my 2 Cents

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IffyG
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PostPosted: Sat Aug 28, 2010 2:26 pm    Post subject:   Reply with quote

Except this is a common problem with 2000-2005 Impalas. Every summer we get a bunch of posts saying I'm getting cold air on one side and hot air on the other and 95% of the cases its the actuator or blend door...

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2007SSImpala
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PostPosted: Sat Aug 28, 2010 2:33 pm    Post subject:   Reply with quote

ok, well check the blend door and actuator. Big Thumbs Up

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Tim
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PostPosted: Sat Aug 28, 2010 4:51 pm    Post subject:   Reply with quote

[url]http://www.w-body.com/showthread.php/22011-%282nd-Generation%29-FAQ-Help!-My-HVAC-is-cold-on-one-side-hot-on-the-other![/url]

It's got a few extra pictures of what actually breaks inside the little buggers.

Would post in the linked thread, but don't want to bump a year old topic lol

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dactionjackson09
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PostPosted: Sat Aug 28, 2010 5:29 pm    Post subject:   Reply with quote

i appreciate all the quick responses...im going to look into both of those issues...going with the easiest first...
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biglinc1
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PostPosted: Sat Aug 28, 2010 10:55 pm    Post subject:   Reply with quote

IffyG wrote:
Except this is a common problem with 2000-2005 Impalas. Every summer we get a bunch of posts saying I'm getting cold air on one side and hot air on the other and 95% of the cases its the actuator or blend door...

Thats pretty common on ALL General Motors cars with the dual zone controls... It was a problem back in the 90s on many Cadillacs and Buicks with that option as well...
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DasRed
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PostPosted: Sun Aug 29, 2010 8:27 pm    Post subject:   Reply with quote

Yeah, I have to dig into this on on my Mom's Avalanche, but with hers if you shut the truck off and restart, it works fine, so I'm wondering if it's something computer related.

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biglinc1
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PostPosted: Sun Aug 29, 2010 9:02 pm    Post subject:   Reply with quote

DasRed wrote:
Yeah, I have to dig into this on on my Mom's Avalanche, but with hers if you shut the truck off and restart, it works fine, so I'm wondering if it's something computer related.


I think its more in the switch than a computer related problem... I've known GM dealership mechanics and GM tech persons have issues trying to figure out the problems... One GM tech told a local dealership to basically "jury rig" the problem best they could on a Cadillac... Rolling Eyes Laughing
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Pitch Black SS
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PostPosted: Mon Aug 30, 2010 12:24 pm    Post subject:   Reply with quote

DasRed wrote:
Yeah, I have to dig into this on on my Mom's Avalanche, but with hers if you shut the truck off and restart, it works fine, so I'm wondering if it's something computer related.


My Dad's Silverado does the same thing.

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biglinc1
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PostPosted: Mon Aug 30, 2010 1:02 pm    Post subject:   Reply with quote

Pitch Black SS wrote:
DasRed wrote:
Yeah, I have to dig into this on on my Mom's Avalanche, but with hers if you shut the truck off and restart, it works fine, so I'm wondering if it's something computer related.


My Dad's Silverado does the same thing.


Pray that mine doesn't start doing that... Rolling Eyes
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dactionjackson09
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PostPosted: Mon Jul 18, 2011 9:58 am    Post subject:   Reply with quote

well i replaced my blend door that was under the dash and it started blowing cold for a little bit, but then today it was back to hot air and not as much pressure blowing out as the drivers side is doing. any suggestions?
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