I am having a problem with my heater. The unit does not open the
vents. The motor works as does the temperature slide. The problem
is
the top slide does not redirect the air for defrost heat etc. It
will
switch to air conditioning though. It appears to be vacuum activated
and all hoses and port appear fine. Where is the vacuum source for
this and how do I reconect it?
Thanks in advance.

 

Going to be a tedious job, probably most of the vacuum hoses will be
cracked as they leave the intake manifold ports on a twenty year old car.
God Bless America, Bill O|||||||O
mailto:----------@----------.com


<jimmy3stix@comcast.net> wrote in message
news:2721cf2b-0c66-4134-8a3d-86a5c9dec80f@d4g2000prg.googlegroups.com...
> I am having a problem with my heater. The unit does not open the
> vents. The motor works as does the temperature slide. The problem
> is
> the top slide does not redirect the air for defrost heat etc. It
> will
> switch to air conditioning though. It appears to be vacuum activated
> and all hoses and port appear fine. Where is the vacuum source for
> this and how do I reconect it?
> Thanks in advance.
>



--
Posted via a free Usenet account from http://www.teranews.com

 

Going to be a tedious job, probably most of the vacuum hoses will be
cracked as they leave the intake manifold ports on a twenty year old car.
God Bless America, Bill O|||||||O
mailto:----------@----------.com


<jimmy3stix@comcast.net> wrote in message
news:2721cf2b-0c66-4134-8a3d-86a5c9dec80f@d4g2000prg.googlegroups.com...
> I am having a problem with my heater. The unit does not open the
> vents. The motor works as does the temperature slide. The problem
> is
> the top slide does not redirect the air for defrost heat etc. It
> will
> switch to air conditioning though. It appears to be vacuum activated
> and all hoses and port appear fine. Where is the vacuum source for
> this and how do I reconect it?
> Thanks in advance.
>



--
Posted via a free Usenet account from http://www.teranews.com

 

I'm betting on the servo for the defrost being defunct. You can test
these with a cheap vacuum pump and a piece of hose. Gaining access will
be the difficult part.

Cheers,

Earle

"L.W. (Bill) ------ III" <----------@----------.com> wrote in message
news:474b5ed4$0$25987$88260bb3@free.teranews.com.. .
> Going to be a tedious job, probably most of the vacuum hoses will
be
> cracked as they leave the intake manifold ports on a twenty year old
car.
> God Bless America, Bill O|||||||O
> mailto:----------@----------.com
>
>
> <jimmy3stix@comcast.net> wrote in message
>
news:2721cf2b-0c66-4134-8a3d-86a5c9dec80f@d4g2000prg.googlegroups.com...
> > I am having a problem with my heater. The unit does not open the
> > vents. The motor works as does the temperature slide. The problem
> > is
> > the top slide does not redirect the air for defrost heat etc. It
> > will
> > switch to air conditioning though. It appears to be vacuum
activated
> > and all hoses and port appear fine. Where is the vacuum source for
> > this and how do I reconect it?
> > Thanks in advance.
> >
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>



--
Posted via a free Usenet account from http://www.teranews.com

 

I'm betting on the servo for the defrost being defunct. You can test
these with a cheap vacuum pump and a piece of hose. Gaining access will
be the difficult part.

Cheers,

Earle

"L.W. (Bill) ------ III" <----------@----------.com> wrote in message
news:474b5ed4$0$25987$88260bb3@free.teranews.com.. .
> Going to be a tedious job, probably most of the vacuum hoses will
be
> cracked as they leave the intake manifold ports on a twenty year old
car.
> God Bless America, Bill O|||||||O
> mailto:----------@----------.com
>
>
> <jimmy3stix@comcast.net> wrote in message
>
news:2721cf2b-0c66-4134-8a3d-86a5c9dec80f@d4g2000prg.googlegroups.com...
> > I am having a problem with my heater. The unit does not open the
> > vents. The motor works as does the temperature slide. The problem
> > is
> > the top slide does not redirect the air for defrost heat etc. It
> > will
> > switch to air conditioning though. It appears to be vacuum
activated
> > and all hoses and port appear fine. Where is the vacuum source for
> > this and how do I reconect it?
> > Thanks in advance.
> >
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>



--
Posted via a free Usenet account from http://www.teranews.com