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94 Saturn SC2 -- AC Air Direction Will Not Change

Tiny
WSCREATE
  • MEMBER
  • 1994 SATURN
94 Saturn SC2
1.9L DOHC
AT 164,000 miles

I took this car into town today and ended up driving about an hour. The outside temp was about 90 degrees so I was running the AC. I noticed that the ac blows cold air. However, when I change the Air direction control (the one that let's you choose defrost, floor, vents, etc.), nothing changes regardless of the setting. It seems I am getting strong air flow into the driver and passenger floor board, but very weak air coming out of the vents in the dash.

I took the front panel off and looked at the back of the AC controls, and the small cable moves fine.

What could be the matter?


http://www.2carpros.com/forum/automotive_pictures/70282_acmodule_1.jpg

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Friday, May 4th, 2007 AT 7:32 PM

3 Replies

Tiny
PEPPERMRJ
  • MECHANIC
  • 1,158 POSTS
Hey Ws,

Is the cable attached at the other end? That is where the actual changes to the air flow take place.

Good luck and let us know. :)
peppermrj
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Saturday, May 5th, 2007 AT 10:46 PM
Tiny
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  • 59 POSTS
Hey pepper. I dunno. The cable seems to go into a black box that sits near the firewall. I do not know if the box is serviceable or not.
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Wednesday, May 9th, 2007 AT 6:00 PM
Tiny
WSCREATE
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  • 59 POSTS
I believe the black box behind the console under the dash is called the Evaporator Housing. I have checked on the internet for specs, repairs and even replacements, and there is very little info about it aside from explanations of what it does. But nothing about how to fix or repair them. I guess this may be something I will need to take to an AC specialist.
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Thursday, May 10th, 2007 AT 6:16 PM

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