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Old 12-04-2012, 01:08 PM   #1
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Heater/ AC problems

I have a 2005 currently I only have 2 speeds of air the High setting and 3rd setting. I know it is the resistor from previous thread, but now my AC and heat only come out windshield defroster on all directional settings.
What could be the problem? What is the difficulty of fixing this? and what will it cost?

Thanks Nick

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Old 12-04-2012, 01:23 PM   #2
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Sounds like a vacuum leak. Check under the hood near the firewall. The defrost/vent controls are vacuum controlled. It's either leaking from under the hood or behind the heater control panel.

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Old 12-04-2012, 01:36 PM   #3
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Quote:
Originally Posted by jksport12 View Post
Sounds like a vacuum leak. Check under the hood near the firewall. The defrost/vent controls are vacuum controlled. It's either leaking from under the hood or behind the heater control panel.
Are they on drivers, middle or passengers side under the hood and where is the heater control panel is it by the resistor
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Old 12-04-2012, 01:41 PM   #4
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This picture has been posted a few times but here you go, mine was disconnected at the five location when I had my leak.
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Old 12-04-2012, 01:42 PM   #5
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The vacuum lines are along the fire wall towards the passenger side. You'll see them disconnected or dry rotted through. Easy fix. There are also lines behind your control panel connected to the defrost/vent switch. Just remove the upper plastic defrost cowl. Then the ash tray. There are two screws on top of the center console. Remove those. Then there is one screw behind the ashtray. Remove that. Then the center console pops off. Then remove the 4 screws holding your heater/ac controls. Pull it off and check the mulit colored vacuum lines on the defroster/vent switch. They come out of the switch to a connection behind the dash. Check to make sure they are intact.
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