1986 Jeep Greand Wagoneer

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jimmy3stix@comcast.net - 27 Nov 2007 00:32 GMT

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.

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L.W. (Bill) Hughes III - 27 Nov 2007 00:50 GMT

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:BillHughes@billhughes.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
[quoted text clipped - 5 lines]
> this and how do I reconect it?
> Thanks in advance.

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Earle Horton - 27 Nov 2007 01:50 GMT

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

> Going to be a tedious job, probably most of the vacuum hoses will

> cracked as they leave the intake manifold ports on a twenty year old car.
> God Bless America, Bill O|||||||O
> mailto:BillHughes@billhughes.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
[quoted text clipped - 5 lines]
> > this and how do I reconect it?
> > Thanks in advance.

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

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