Why don't you bypass the heater core and see if the problem goes away?
Simply tie the supply and return lines together with a loop of 5/8"
hose at the passenger wheel well. Should take less than 15 minutes.
BTW: Heater core is full of coolant all the time (closing the shutoff
valve at Max A/C does not create an air pocket in there). If your
heater core is leaking, it will radiantly slime your windshield
irrespective of any dash settings. Temp control simply opens a door to
let forced air pass over it. Heater setting on the mode switch merely
routes that air to the foot vents.
Bill Robertson
#5939
>--- In DMCForum@xxxxxxxxxxxxxxx, "Lauren" <LPLand@xxxx> wrote:
>
> Bill and all-- I can smear it around the windshield but never fully
> remove it. It looks at its worst when the sun shines on it and I can
> see the swirls and streaks. It doesn't seem permanent, as in etched
> in, but it doesn't really wipe off either. I haven't used the heater
> since I got the car and honestly I have no clue if it works. If I
use
> Windex, it turns milky white.
>
> Someone suggested that it's ArmorAll, but I once had some success
> with acetone on an ArmorAll'd windshield and acetone just makes
> this stuff white and streaky. Actually everything makes this stuff
> milky white and streaky.
>
> .....................LP
> >
> > Is this a permanent discoloration, or does it disappear after the
> > engine is turned off? If the latter, I'm afraid your heater core may
> > be leaking. When that happens the ethyl glycol in the antifreeze forms
> > a frost looking film on the windshield. Gets worse as outide temps get
> > colder. Some people call it "The Fog", but "The Slime" would be a
> > better description -- there's absolutely no way to clean it off. Your
> > only recourse is to bypass the heater core until replaced.
> >
Back to the Home of PROJECT VIXEN