10-13-2008, 11:04 PM
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#1
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Defeat < Giving Up
Join Date: Dec 2005
Location: Little Rock
Posts: 1,052
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AC/heater problem
So my vent selector doesn't work anymore. I did a search and found one topic but it was never answered. My AC/heater works but all vents are blowing at once and I cant just defrost windshield or windows, or just blow in your face or at your feet if you get what I'm saying. I've checked and it is plugged up right.
This is the knob that doesnt work.
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WhiteLiquid
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10-13-2008, 11:06 PM
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#2
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Its Beer Thirty
Join Date: Nov 2005
Location: Goodyear, AZ
Posts: 1,259
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I would pull the radio bezel off and see if the vacuum lines are hooked up still or if one is broken or cracked.
edit: You checked the vacuum hoses that go to the back of it?
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10-13-2008, 11:09 PM
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#3
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Defeat < Giving Up
Join Date: Dec 2005
Location: Little Rock
Posts: 1,052
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Yea...and that one in particular breaks down and has springs inside of the Connection. I checked them all and they are in place perfectly.
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WhiteLiquid
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10-13-2008, 11:12 PM
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#4
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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you checked they were in place, but do they hold vaccuum?
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2001½ F150 XLT Crew Cab- true dual glasspacks with x-pipe, AEM intake, SCT X3 with VMP custom tunes, full stereo system, HID 55w heads and 35w fogs, 35% tint front and 20% rear, Lightning tail lights
04 F6 Sno Pro Team edition- MBRP race can, ODS clutch kit
01 YZ125- bored out to 144, PnP cylinder and head, Pro Circuit WORKS suspension, many other mods
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10-13-2008, 11:17 PM
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#5
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Defeat < Giving Up
Join Date: Dec 2005
Location: Little Rock
Posts: 1,052
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You mean like a Finger check?
__________________
WhiteLiquid
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10-13-2008, 11:21 PM
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#6
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Its Beer Thirty
Join Date: Nov 2005
Location: Goodyear, AZ
Posts: 1,259
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When you pull the hoses off you should be able to hear it pulling air in.
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10-13-2008, 11:21 PM
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#7
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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i don't have a wiring diagram, but maybe there is a broken wire from that harness or 2 r shorted toether? now that i read it again rear defrost not working would be electrical, not vaccuum. but its still wierd that all vents blow at once...
__________________
2001½ F150 XLT Crew Cab- true dual glasspacks with x-pipe, AEM intake, SCT X3 with VMP custom tunes, full stereo system, HID 55w heads and 35w fogs, 35% tint front and 20% rear, Lightning tail lights
04 F6 Sno Pro Team edition- MBRP race can, ODS clutch kit
01 YZ125- bored out to 144, PnP cylinder and head, Pro Circuit WORKS suspension, many other mods
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10-13-2008, 11:22 PM
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#8
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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you might not hear the vaccuum if, but yea finger check you should be able to tell if there is vaccuum there.
__________________
2001½ F150 XLT Crew Cab- true dual glasspacks with x-pipe, AEM intake, SCT X3 with VMP custom tunes, full stereo system, HID 55w heads and 35w fogs, 35% tint front and 20% rear, Lightning tail lights
04 F6 Sno Pro Team edition- MBRP race can, ODS clutch kit
01 YZ125- bored out to 144, PnP cylinder and head, Pro Circuit WORKS suspension, many other mods
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10-14-2008, 01:43 AM
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#9
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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On mine the actual knob broke (cracked). There was hardly any resistance.
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Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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10-14-2008, 10:21 AM
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#10
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Defeat < Giving Up
Join Date: Dec 2005
Location: Little Rock
Posts: 1,052
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my knob still works fine....and the rear defrost does work (its not ascociated with the knob though, its a seperate button)
I'll check the vacuum today
__________________
WhiteLiquid
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10-14-2008, 11:58 AM
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#11
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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oops sorry i saw u couldn't defrost the windows and just thought u meant rear window for some reason
__________________
2001½ F150 XLT Crew Cab- true dual glasspacks with x-pipe, AEM intake, SCT X3 with VMP custom tunes, full stereo system, HID 55w heads and 35w fogs, 35% tint front and 20% rear, Lightning tail lights
04 F6 Sno Pro Team edition- MBRP race can, ODS clutch kit
01 YZ125- bored out to 144, PnP cylinder and head, Pro Circuit WORKS suspension, many other mods
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10-14-2008, 03:18 PM
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#12
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Defeat < Giving Up
Join Date: Dec 2005
Location: Little Rock
Posts: 1,052
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ok just checked and I dont hear or feel any vacuum....
Now what?
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WhiteLiquid
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10-16-2008, 06:38 PM
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#13
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Defeat < Giving Up
Join Date: Dec 2005
Location: Little Rock
Posts: 1,052
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bump* for no vacuum pressure
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WhiteLiquid
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10-17-2008, 03:14 AM
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#14
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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The purple hose is the vacuum supply. You should have vaccum available any time the engine is running. There is a vacuum reservoir under the dash as well. Also check the vacuum connections on the intake manifold.
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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