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07-22-2010, 07:24 AM
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#1
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Join Date: Jul 2008
Location: Columbia
Posts: 928
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OK so what broke?
OK guys help me out with this one. My 05 Silverado started blowing out hot air on any setting (vent, A/C, or otherwise). It did it after I turned off the AC, cilmate selector was never moved off the coldest setting. So I was thinking that a damper between the selector and the heatercore is broken. Am I on the right track?
Good thing it is only going to be 90 and humid today and I have an hour ride home in traffic. 
__________________
Praise the Lowered
67' Camaro - Worked 327, Hotchkis TVS suspension, 4 wheel cross drilled discs, AM radio FTL
05' Silverado - Stock, stock, and stock.
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07-22-2010, 07:33 AM
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#2
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,165
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It's possible the blend door stopped working. Or the AC stopped working.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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07-22-2010, 09:26 AM
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#3
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Join Date: Jul 2004
Location: West Long Branch
Posts: 13,598
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Easy thing to do is check the pressure in the ac system and make sure that is in range. Make sure your ac clutch is engaging (clicking noise). If everything checks out there i would investigate the blend door or something along those lines.
__________________
2/20/2013: They Day the ****s Stopped
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07-22-2010, 11:43 AM
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#4
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Join Date: Jul 2008
Location: Columbia
Posts: 928
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The AC is fine. But even when I have the vent only on the coldest setting I have heated air bolowing out. It has to be something with the climate control not shutting a damper to the heater core. Right?
__________________
Praise the Lowered
67' Camaro - Worked 327, Hotchkis TVS suspension, 4 wheel cross drilled discs, AM radio FTL
05' Silverado - Stock, stock, and stock.
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07-22-2010, 12:27 PM
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#5
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,165
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as long as the ac is working (are the evaporator lines cold with the ac on?) I vote blend door. It probably has a motor that burned out. Go prowl around fullsizechevy.com
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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07-22-2010, 01:02 PM
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#6
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Join Date: Apr 2006
Location: Point Pleasant
Posts: 1,809
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Quote:
Originally Posted by BonzoHansen
as long as the ac is working (are the evaporator lines cold with the ac on?) I vote blend door. It probably has a motor that burned out. Go prowl around fullsizechevy.com
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Or the resistor in the climate control that operates the blend door shorted.
__________________
-Vinnie
94 2wd SBSC Gmt400. 330CI LSX, Fast 102, Trickflow 205s, close ratio nv3500, 4.30/trutrac.
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07-22-2010, 01:30 PM
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#7
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,165
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Quote:
Originally Posted by r0nin89
Or the resistor in the climate control that operates the blend door shorted.
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Absolutely, anything involved in blend door movement.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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07-22-2010, 02:35 PM
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#8
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Join Date: Oct 2008
Location: Clayton
Posts: 521
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if the hvac system is still activated by vac lines like they are on my s10, see if you can check to see if one popped off or came loose off a connection. one came off on mine before and allowed hot air out of the floor vent constantly. i was able to acces my lines from the glove box, not sure if you will have the same setup.
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07-22-2010, 02:38 PM
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#9
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Join Date: Jul 2008
Location: Columbia
Posts: 928
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Thanks guys!
__________________
Praise the Lowered
67' Camaro - Worked 327, Hotchkis TVS suspension, 4 wheel cross drilled discs, AM radio FTL
05' Silverado - Stock, stock, and stock.
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