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Climate Control Mode Switcher

Old 05-03-2006, 02:36 PM
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Xaa
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Default Climate Control Mode Switcher

Hi,

Recently I turned the **** on my 94 SE that changes the function from defrost to blowing through the vents to AC etc. When I did that the **** stripped. Something else must have happened as well.

Now, if I use the **** from the airmix controller (hot/cold) in place of the stripped ****, the pin turns but it will not switch from it'* current position (defrost). Tthat would be a great place for it to be if I could only have one, but the problem is that I can't turn it to any of the AC settings to get the compressor to come on and cool off the car.

I think the airmix actuator is located by the heater core, but I don't have a clue of what device is controlling the switching of activites or where it'* located.

Any help is appreciated.

Xaa
Old 05-03-2006, 04:25 PM
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The switch (and ****) to control air distribution controls both vacuum and electrical functions for air delivery and to signal the compressor. My particular switch in my '94 wouldn't rotate and was locked in a non-ac position. I replaced the whole unit with one from e-bay/ The switch had gone bad, and the replacement worked fine.

To begin with, I suggest you remove your lower dash panel to remove the climate control unit. The panel is held on by clips. Carefully pry the panel all the way around until the panel clips are released. Remove the climate control unit and inspect the clear connector with all the little color vacuum lines. Look for a collapsed line. If you find one, you may be able to splice in a new line to repair.

Also, check any electrical connections.

You may need a new switch, but thought that some of this info would help.
Old 05-03-2006, 05:06 PM
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Thanks, I'll look for those things, it'* getting warm here in charlotte. What is that assembly called if I needed to search for a used one? Climate Control Unit?
Old 05-03-2006, 05:16 PM
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Called several different things.....I'll need to look in the book to find out the exact name. Here is an ebay one (but says for 96-99). I got mine from a 95 for about 19.99 plus 5 shipping. Can't remember if they are different for different years or interchangeable, though.

http://cgi.ebay.com/ebaymotors/96-97...QQcmdZViewItem
Old 05-03-2006, 05:27 PM
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Think I found one for me.

http://cgi.ebay.com/ebaymotors/Ponti...ayphotohosting

So if I understand what you're saying to me, my problem is likely one that is electrical vs one that is mechanical like an arm moving a door? Right?

i'll investigate, solve and post back with either more questions or results. Thanks!
Old 05-03-2006, 05:51 PM
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Originally Posted by Xaa
Think I found one for me.

http://cgi.ebay.com/ebaymotors/Ponti...ayphotohosting

So if I understand what you're saying to me, my problem is likely one that is electrical vs one that is mechanical like an arm moving a door? Right?

i'll investigate, solve and post back with either more questions or results. Thanks!
That would be the one you would want.

Honestly, the controller is only a POSSIBLE solution. There very well could be a different problem like loss of vacuum (since the air blend door and outlets are controled though the vacuum tubes or a door could be stuck or binding. But since you said the "pin" turns but no change in the climate position is noticed, I was offering my experience with the manual ****. Remember, though, my "pin" simply stopped turning and was jammed.

I will do a little more research to see what else I can find and in the meantime, some others may be able to chime in and give their opinion. You should check the back of your climate control unit for the clear connector with vac lines to first see if any are collapsed or clogged lines as well as checking the electrical connections.
Old 05-03-2006, 06:48 PM
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Thanks, I appreciate everything that you've done, I know you can't know from there.

I messed with it a bit on the way home and it appears that the switch might be working. I turned it and still nothing to the floor or vents and no compressor turn on, but when I went all the way to off, it went off.

I'll investigate some more. Thanks

Xaa
Old 05-08-2006, 01:46 PM
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Just to update. Based on this thread and another, I learned a lot about the system. I inspected everything and found a vacuum hose off in the enging compartment. Hooked it back up and all is well. I lucked out.

Thanks for all the help.
Old 05-08-2006, 01:50 PM
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On the vacuum accumulator on the firewall next to the master cylinder? The fitting underneath?

Yup.
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