[DML] Re: Proper operation of mode switch

["stainlessilusion" <5n-@xxxxxxx>]

Ryan- Stick your hand behind the heater where that foam piece you
taped up 
is and run it on normal. You will feel if there are any more leaks. I
tried duct 
tape but apparently it didn't stop all my leaks. I poured fast tack
adhesive all 
over the place; the foam/heater box/and hoses themselves and now I
don't 
have any leaks. Also-check to make sure your rugs arent in the way of
the 
heater footwell ducts, it is typical for this to happen-the ducts are
up on the 
tunnel by the heater. I don't remember which place-but there was a bulletin 
either in the bulletin book or dmcnews that describes this problem so check 
that out. If this doesn't improve
your 
problems, then you'd want to check out the vac lines. Vent should
just come 
out the door vents and the one above the radio, bi-level comes out
the vents 
and footwells, heater just comes out the footwell vents-there is a
description in 
the shop manual where the air will flow (in the heating section I
believe) at a 
given setting-check the book and you should be all set. Let us know what 
happens- Dani B. #5003

--- In dmcnews@xxxxxxxxxxxxxxx, "ryanpwright" <yahoo1@xxxx> wrote:
> 
> 
> What is the proper operation of the mode switch? In other words,
where
> should I get air on the various settings?
> 
> Here's the deal: I get A/C just fine on the three A/C settings, but
> there isn't much of a difference between them. The airflow is
boosted
> slightly when on max. Mid and low appear identical. When the
> temperature is switched to hot, "vent" directs air at my feet,
> "heater" doesn't seem to direct air anywhere, and "defrost" seems to
> direct more air toward the windshield but not as much as I'd expect.
> If I switch the temperature over to cold, all of this changes
> completely!
> 
> So I dug into it tonight. The dreaded previous owner screwed up my
> vaccumn lines. I did my best to sort them out, following the diagram
> here (http://www.usadmc.com/dmcstore/images%5C730.gif). There was an
> extra T where one shouldn't be, another with a missing hose, etc.
> Anyway, I think it's all as it should be now, but the situation
hasn't
> changed any. 
> 
> I've:
> 
> 1. Rebuilt the mode switch. There are no vaccumn leaks that I know
of
> either up front or at the engine - doesn't mean they aren't there,
> just that I don't know of them. :)
> 
> 2. Sealed (as best as I could) that foam behind the heater box with
> some duct tape.
> 
> 3. Tried to sort out the vaccumn lines, I THINK they're correct, but
> who knows.
> 
> Any thoughts?
> 
> -Ryan








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