Hot air all the time!
benswann at comcast.net
Wed Aug 15 14:01:35 EDT 2007
Hey guys, I couldn't get my heater valve in my UrQ to seal perfectly, and
even the newer ones would leak, likely because the Bowden cable did not get it
to fully close. So I got a hot water shutoff valve from Home Depot - the kind
with a lever handle and brass ball. I keep it closed during the summer and
open in the late fall. Worked great. Without it, even with a working AC, hot
air would mix in and ruin the cooling. It is a bit of fun to get it plumbed
in due to additional length and lack of room, but worked well for me - about a
1 hour fix.
[Date: Tue, 14 Aug 2007 19:10:26 -0500
From: "LL - NY" <larrycleung at gmail.com>
Subject: Re: Hot air all the time!
To: "Cody Forbes" <cody at 5000tq.com>
Cc: Mark Graham <mlgraham1 at verizon.net>, quattro at audifans.com
<85e5c2670708141710j6781acfaif4a6e0a3d7304ff1 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
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:
> -Cody Forbes
> http://www.5000tq.com <http://www.5000tq.com/>
> '87 5ktq - Fast.
> '86 5ktqCD
> '86 5k
> '86 5k]
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