Re: [DML] Mode Switch Removal Method

[Gus Schlachter <gus@xxxxxxxxxxxxx>]

Steve,

I just recently removed my own mode switch.  Not that there was anything 
wrong with it, but I had dislodged the vacuum lines while R&Ring the 
stereo. ("Why is my stereo making that hissing noise?  Why does it go away 
when I accelerate?  Why doesn't my A/C work?  Why is my idle so 
funny....oh crap!")

Anyway, I was able to remove the mode switch by removing the screw(s) in 
front (I only have one?!??) and pulling it out through the back.  But this 
may not work in your case for several reasons.  First of all, my dash was 
modified for a modern stereo that I could remove through the front, giving 
me an access hole through which to work.  This was important, since the 
electrical connector to the switch actually three individual wires, not a 
single plug.  I don't think I could have removed or replaced the switch 
without being able to see those.  AND I had to work though the stereo 
cutout, which meant using several hemostats...I felt like a surgeon, lol.

If you still have the factory radio, I don't see how you can service the 
mode switch without either removing the center console, or getting a 
"Honey I Shrunk The Kids" machine.  It is still possible that you simply 
have an open/dislodged vacuum line under the dash, but I assume you've 
looked for that already.

When you do get the mode switch apart, I highly recommend the 
"Defrost+A/C" modification:

  http://dmcnews.com/Techsection/modeswitch.html

And while you've got the A/C panel open, I advise replacing the bulbs with 
BA7 LEDs from http://www.superbrightleds.com, although THAT procedure 
required the hemostats, too.


Gus Schlachter
VIN #4695
Austin, Texas


> I've searched the archives at dmcnews about removing the mode switch
> from center dash 
> board for repair.  According to parts drawing Section 7, sub 3, 
> group 0, the mode switch is 
> behind part 40 "RDO VENT & SW MT PLT".   It looks like there are 
> differing opinions on 
> whether the center console has to be removed or not to access the 
> mode switch.  Which one is  correct?
> 
> So far, I've managed to remove the control knobs, indication lights,
> and AC facia (part 35), but I am not sure what to do next. 
> 
> Problem symptom: No heat from vents and the windshield vents doesn't
> have any air output.


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