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2003 AC Climate Control
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Impala_03
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PostPosted: Sun Jun 23, 2013 6:18 pm    Post subject:  2003 AC Climate Control Reply with quote

Having a issue with the Climate Control


seems only the passenger side is colder then the driver side (luke warm)


It a possibly bad temperature switch ? since It did work fine before I swapped it with this other controller


the original controller had a issue with the fan speed switch.


did I do something wrong when installing it?[/list]
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IffyG
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PostPosted: Mon Jun 24, 2013 10:32 am    Post subject:   Reply with quote

First thing I would do is pull out the unit and make sure you didn't pinch a vacuum line. If those are all good, odds are you have a bad blend door actuator. Common problem with this car that produces the issue you are having.

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PostPosted: Sat Jun 29, 2013 6:02 pm    Post subject:   Reply with quote

IffyG wrote:
First thing I would do is pull out the unit and make sure you didn't pinch a vacuum line. If those are all good, odds are you have a bad blend door actuator. Common problem with this car that produces the issue you are having.
purple one was slightly pinched fixed but it still blows warm on the driver side Sad


I think the control unit is the issue since it did not do this before installing this "one " Sad I'm sure I installed it correctly as well
I think It may have been install incorrectly ? see photos?



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PostPosted: Sat Jun 29, 2013 6:38 pm    Post subject:  heat Reply with quote

blend door actuator. Cool

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PostPosted: Sat Jun 29, 2013 8:20 pm    Post subject:  Re: heat Reply with quote

topgun wrote:
blend door actuator. Cool
Anyway to FORCE always cold .mode sure there is away

In july I'm going on a 2,000 miles trip surely I going to want COLD air.


today it did smell like burning coming from the vents No smoke though
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PostPosted: Sat Jun 29, 2013 11:41 pm    Post subject:   Reply with quote

If the blend door is jammed, you can't really force it to cold air. You'll need to replace the actuator. Unfortunately for you, that is one of the only things on my car that never needed attention, so I can't provide anything more useful.

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PostPosted: Sun Jun 30, 2013 3:37 am    Post subject:   Reply with quote

Computer says it's accessible under the dash, I can't remember if that's actually true or if you have to pull the whole dash out.

You'll need a 7mm socket to take out the lower dash cover, and a 5.5mm socket to take out the actuator once you gain access. Most Chevys you'll find it just above the accelerator pedal, most it comes out real nice and easy. Sometimes it doesn't go that way, sometimes it gets stuck on the shaft and you just can't get it out, sometimes it's pinned in there by the dash support or something.

Click here for GM's instructions:
2003 GM_W AC Temp Door Act.pdf

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PostPosted: Thu Jul 04, 2013 2:41 am    Post subject:   Reply with quote

IffyG wrote:
If the blend door is jammed, you can't really force it to cold air. You'll need to replace the actuator. Unfortunately for you, that is one of the only things on my car that never needed attention, so I can't provide anything more useful.
I had my mechanic check it out, diagnostic: low freon.

He said the passenger side is not as cold as it should be

is 75$ a reasonable price to
Vacuum out all old refrigerant and refill.



I think the mixer works ok since it's warm(on cold) and EXTREMELY HOT (on Hot)
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PostPosted: Thu Jul 04, 2013 10:03 am    Post subject:   Reply with quote

If its blowing cold enough on one side but not the other, it's not low on refrigerant, it's a blend door actuator. Your mechanic is gonna do all that work for no reason and you will still have your problem.

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PostPosted: Thu Jul 04, 2013 7:32 pm    Post subject:   Reply with quote

IffyG wrote:
If its blowing cold enough on one side but not the other, it's not low on refrigerant, it's a blend door actuator. Your mechanic is gonna do all that work for no reason and you will still have your problem.
well the air is not super cold though low to mid 80's at best. (still seems colder then the outside air of 100F)
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PostPosted: Fri Jul 05, 2013 12:40 am    Post subject:   Reply with quote

Impala_03 wrote:
IffyG wrote:
If its blowing cold enough on one side but not the other, it's not low on refrigerant, it's a blend door actuator. Your mechanic is gonna do all that work for no reason and you will still have your problem.
well the air is not super cold though low to mid 80's at best. (still seems colder then the outside air of 100F)
Last time I checked, my 05 Impala was blowing 47 degrees from the left center A/C vent, & it was 90 outside. I find that amazing for a R-134 car. GARY

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PostPosted: Fri Jul 05, 2013 6:51 am    Post subject:   Reply with quote

9C3 wrote:
Impala_03 wrote:
IffyG wrote:
If its blowing cold enough on one side but not the other, it's not low on refrigerant, it's a blend door actuator. Your mechanic is gonna do all that work for no reason and you will still have your problem.
well the air is not super cold though low to mid 80's at best. (still seems colder then the outside air of 100F)
Last time I checked, my 05 Impala was blowing 47 degrees from the left center A/C vent, & it was 90 outside. I find that amazing for a R-134 car. GARY
I think the passenger side has higher priority for the cold air access which is why the passenger side is cooler
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PostPosted: Fri Jul 05, 2013 4:17 pm    Post subject:   Reply with quote

Impala_03 wrote:
i think the passenger side has higher priority for the cold air access which is why the passenger side is cooler

Geek Out LOL AC should be the same temp out of all vents unless the actuator can't move to the proper setting. But if your AC isn't getting colder than 60 degrees out of the vents, you're probably low no freon as well.

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PostPosted: Fri Jul 05, 2013 6:16 pm    Post subject:   Reply with quote

ZSPOT wrote:
But if your AC isn't getting colder than 60 degrees out of the vents, you're probably low no freon as well.


Agreed. Sounds like a combination of problems.

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PostPosted: Fri Jul 05, 2013 7:34 pm    Post subject:   Reply with quote

The Chevy tech's at the dealer where I worked always told me the left center vent will blow coldest, as it's the closest to the evap core housing. GARY

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