5kcstq, hot "econ" air

[Kneale Brownson]

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Different flap,  Ken.  Robert was referring to the flaps inside the heater
core box, I think.  On the 5k, that system of flaps that controls where the
airflow goes is run by a cable from the controls box in the passenger footwell.

"Econ" uses outside air and does no cooling.  It will temper cold outside
air to warm by passing it over a heated heater core, but it will not reduce
the temperature of the outside air.


At 04:45 PM 05/30/2002 -0700, Ken wrote:

>Ah so, the one that has a spring that breaks! (?)
>
>Yet another unexplored part of the car that needs looking into.  I'll
>definitely look into this.  It just seems like there is some heating going on.
>
>That failure mode was fog on the windshield or something, right?  Not that
>fog has much of a change around here, so I wouldn't see that.
>
>So, when the heater is off, not only the heater valve gets closed, but the
>airflow is diverted as well.
>
>I always wondered if, generally speaking, the temp of the heater core
>itself needs to come down to ambient after turning off the heater, before
>air can flow at ambient temps.  Mostly in regards to "regular" cars, since
>I didn't  know of any heater control besides the valve controlling flow to
>the core.
>
>Sounds like Audi put in a door too.
>
>Thanks Robert!  I was thinking it wouldn't be the programmer, since I
>could see the heater valve working its magic.
>
>Oh joy!  If my a/c was having to overcome the heater core, that would be
>great once fixed.  It might get colder! =)
>
>Ken
>
>Robert Deis rdeis at io.com
> >
> > Isn't there a flapper door in the system that keeps air
> >away from the heater core?
> >
> > With your intermittent cooling under the AC I'd guess that > this door
> isn't working right.
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