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Larry O
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Joined: 16 Nov 2012
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Location: GA
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 Posted: Sat Dec 08, 2012 4:45 pm Post subject: O/T Chevy Silverado air system |
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This has me stumped 1998 Silverado with little to no air coming from the vents Fan is working you can hear air moving somewhere but not to the vents. There is no change in volume when you go from hot to cold but you can feel the heat difference. I have had the bottom off most of the duck work looking for a blockage or a stuck door but so far nothing any Ideas would be greatly appreciated
Thanks Larry O
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DannyE
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Joined: 20 Feb 2010
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| Posted: Sat Dec 08, 2012 5:07 pm Post subject: Re: O/T Chevy Silverado air system |
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What year? My "02 has a filter on the bottom, by passengers feet,not too bad to replace,mite try that. Dan
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Lance in Brenham TX
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| Posted: Sat Dec 08, 2012 5:08 pm Post subject: Re: O/T Chevy Silverado air system |
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If you can hear the fan blowing, the door is stuck.
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Larry O
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| Posted: Sat Dec 08, 2012 5:16 pm Post subject: Re: O/T Chevy Silverado air system |
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Lance I’m with you
but like I mentioned I have had the bottom of everything inside and all the doors I can find move and make no difference in air flow. I was hoping there was one somehow hidden that I’m not finding.
Larry O
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Larry O
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| Posted: Sat Dec 08, 2012 5:20 pm Post subject: Re: O/T Chevy Silverado air system |
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Dan mine is a 98 and my Haynes book doesn’t show scat about the duct work I have not seen a filter but will look and post back
Thanks Larry O
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ray hofstetter
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Joined: 05 May 2012
Posts: 602
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| Posted: Sat Dec 08, 2012 5:26 pm Post subject: Re: O/T Chevy Silverado air system |
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No air ANYWHERE? Maybe "squirrel cage" came loose/broke on the fan motor?
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Greg1959
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Joined: 30 Aug 2011
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| Posted: Sat Dec 08, 2012 5:38 pm Post subject: Re: O/T Chevy Silverado air system |
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Mouse nest????
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ShadetreeRet
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Joined: 17 Jun 2011
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| Posted: Sat Dec 08, 2012 5:48 pm Post subject: Re: O/T Chevy Silverado air system |
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Those Haynes manuals don't even make good toilet paper! But seriously, if you stop by the parts dept. of your nearest dealer, (providing you are on speaking terms), they may show you the breakdown on the computer, Especially if they think they may sell a part.
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Ronald Anthony Anderson
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Joined: 11 Sep 2012
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| Posted: Sat Dec 08, 2012 6:33 pm Post subject: Re: O/T Chevy Silverado air system |
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The switch that controls vent,defrost, heat, air conditioning probably went bad for you. They are noted for doing that. Its hard to find one in a junk yard. 50-75.00 used
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casecollectorsc
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Joined: 24 Dec 2011
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| Posted: Sat Dec 08, 2012 6:42 pm Post subject: Re: O/T Chevy Silverado air system |
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Around here they tell you, could be this, could be that, bring it in we will look at it. Don't think so!!
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Tim in OR
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Joined: 24 Jan 2004
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| Posted: Sat Dec 08, 2012 7:41 pm Post subject: Re: O/T Chevy Silverado air system |
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any chance a vacuum line has collapsed?
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brian brooks
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| Posted: Sat Dec 08, 2012 11:54 pm Post subject: Re: O/T Chevy Silverado air system |
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Look it up online some rides have problems with the blend door.
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Allan in NE
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| Posted: Sun Dec 09, 2012 5:44 am Post subject: Re: O/T Chevy Silverado air system |
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Cab Filter plugged?
Allan
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MisterT
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| Posted: Sun Dec 09, 2012 6:04 am Post subject: Re: O/T Chevy Silverado air system |
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| Allan In NE wrote: | (quoted from post at 14:44:31 12/09/12) Cab Filter plugged?
Allan |
I have an '01 that I bought new. I never did think the heater/AC worked as good as it should. A few years ago I learned there might be a filter in there, so I went looking, found it, and yes it was dirty. I pulled it out, put the door back on without a filter, and now the system works just like I always thought it should have. Apparently those filters are quite restrictive even when new.
Unless a truck is being operated in extreme dusty conditions all the time, I see no need for that filter.
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tedregentin
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| Posted: Sun Dec 09, 2012 6:24 am Post subject: Re: O/T Chevy Silverado air system |
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Do you expect a shop to diagnose a problem over the phone?
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