Ford: 98 taurus heater

> does the '98 Taurus heater core have a heat control valve in it? i 
be 

Check your thermostat. Sounds like it's stuck in the open position. Not
uncommon, especially after a hot summer.

No, heat is controlled by what is called a blend door.
"Slammer" <com> wrote in message news:newsguy.com... 

then the heater core would be constant flow. with the in and out hose booth
being hot to the touch? sounds like it could be blocked.

thanks for the information!!

"Thomas Moats" <me@net> wrote in message
news:supernews.com... 
news:newsguy.com... 
to be 

In news:alt.autos.ford, "Slammer" <com> posted on Tue, 23 Sep
2003 18:44:43 -0500:
 

I have exactly the same problem. I checked under the dash and when I
twist the temperature control knob, I can see the lever that controls
the blend door move at its full range. When switching from cold to hot,
I get warm air for a few seconds, but then it slowly cools until it's
cool air, but not quite as cool as it is when it's on full cold.

I wondered if the heater core might be clogged, but in my past
experience with clogged heater cores, the windshield defogger wouldn't
defog the window effectively, yet this one does. It just does it with
cold air, but very quickly.

I just can't seem to figure this one out.

Damaeus

Damaeus <invalid.net> wrote in message news:<com>... 

I have a '00 Taurus that I've recently had A/C problems, and in my
investigations, I found that the A/C compressor would engage when the
blend selector was set to include the windshield defrost vents
irrespective of the temperature control knob. I was told that this
was a feature so that any air going to the windshield would pass over
the evaporator and therefore be drier. My hypothesis would be that
even though you have poor heating of your defrost air, you are at
least passing _drier_ air onto the glass and therefore forcing
evaporation by virture of the humidity differential.

That doesn't really gel with your previous anecdotal experience,
however...

FWIW,

Robert