Hot air all the time!

[LL - NY]

I just put an inline valve (got one from a 4K at a wrecking yard)
in the heater line as a positive shut off since the bowden cables
on that car just didn't seem to do it by themselves. Pretty well
a $4 fix.

LL - NY

On 8/14/07, Cody Forbes <cody at 5000tq.com> wrote:
>
> Mark Graham wrote:
> > Howdy!
> >
> > I'm working 12 hr. shifts and haven't had time to check the archives.
> > I have a 86 5000 with a seized A/C compressor now for 5 years.  Just
> > recently, all it will do is blow hot heated air in the Vent, Economy
> > position, etc.  No cool or cold outside air?  What do I need to check
> > or fix?  Any guidance would be greatly appreciated!
>
> I'm in the same boat. I believe the answer is one you aren't going to like
> though! The blower housing and such all rest in a very hot place, and
> basically your 'cool' outside air is just getting heated up by the super
> high underhood air temps that our cars suffer from. In my case the heater
> valve isn't leaking, and the heater core isn't getting too hot, and the
> entire HVAC casing under the cowel is very hot to the touch. Of course
> even
> without coolant flow the heater core will still heat up just by the heat
> conductivity of the water and hoses. 2+2 = No refigerant flow means
> windows
> down ;-).
>
> It is also possible that your heater valve is leaking, or that it's being
> falsely opened. Try taking cobram's advice and clamping off one of the
> heater hoses. I suggest something like this design:
>
> http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=66783&group_ID=1461&store=snapon-store&dir=catalog
>
> -Cody Forbes
> http://www.5000tq.com
> '87 5ktq - Fast.
> '86 5ktqCD
> '86 5k
> '86 5k
>
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