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Old 04-15-2009, 07:55 PM   #1
rpainter

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blower not changing positions

My 04.5 today started not wanting to change blower settings( foot,face,or any settings) No matter what the position is on it only blows to the windshield and a little air is coming out on the floor. the not and cold knob works and the fresh/recirculate door works. any ideas? Rob It did change a few times but took a long time to change.
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Old 04-15-2009, 08:48 PM   #2
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blend door broken, seems common on 03-04 trucks, mines been that way for 8 months, been to lazy to fix it.
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Old 04-15-2009, 09:02 PM   #3
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mines been this way since i got truck 7 minths ago i have changed the control knobs and the blind door motor and it didnt fix so i hadnt done anything else about it mine blows out the vents at all times
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Old 04-15-2009, 09:11 PM   #4
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Blend door is broke....gota pull the dash to fix it.
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Old 04-16-2009, 12:49 AM   #5
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Mine done it when it was new it was a factory recall so they fixed it and nothing wrong since then.
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Old 04-16-2009, 04:35 AM   #6
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Mine's been fixed twice!!
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Old 04-16-2009, 06:43 AM   #7
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Could be the blend door, either way you have to remove the dash or at least set it back in the seat. It sounds like a tough job, but its actually very easy.
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Old 04-16-2009, 06:50 AM   #8
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I am going to pull the blower motor today to see if I can see the broken blend door. I had the middle section out in the past couple weeks to install more gauges and I am hoping the plug on the back of the selector is loose. Rob
 
Old 04-16-2009, 08:07 AM   #9
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I removed the blower motor and the blend door is intact and not broken.?? any other ideas maybe vacuum related
 
Old 04-17-2009, 06:41 AM   #10
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Quote:
Originally Posted by rpainter View Post
I removed the blower motor and the blend door is intact and not broken.?? any other ideas maybe vacuum related
If you pulled the blower motor and looked up to see the door then you are seeing the Recirculation door, which has nothing to do with which vents the air comes out of.

The blend door's job is to blend hot and cold air when you turn the temp knob. The Mode door and Defrost door control where the air comes out. Most likely its your mode door.

All of the HVAC doors on 3rd gens are electronically controlled not vacuum.
 
Old 04-17-2009, 07:40 AM   #11
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anybody have a writeup on how to get the dash off?
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Old 04-17-2009, 07:46 AM   #12
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do the 3rd gens ghave a vacuum pump on the motor? check all lines to make sure a fitting didn't pop off while you were working under the hood.
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Old 04-17-2009, 03:51 PM   #13
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Quote:
Originally Posted by Spurrinit View Post
If you pulled the blower motor and looked up to see the door then you are seeing the Recirculation door, which has nothing to do with which vents the air comes out of.

The blend door's job is to blend hot and cold air when you turn the temp knob. The Mode door and Defrost door control where the air comes out. Most likely its your mode door.

All of the HVAC doors on 3rd gens are electronically controlled not vacuum.
I cant figure it out everything is working fine now??
 
Old 04-17-2009, 04:58 PM   #14
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SHHHHHHHH !!!!!!!!!!!

You'll jinx it.
 
Old 04-17-2009, 05:14 PM   #15
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This is the best write I've seen to date. Enjoy! HVAC/Dash Removal
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