Re: AC problems with vacuum hoses - 86 944

well, did you try the obvious and look for broken hoses?  did you look to 
see what exactly is moving when this happens? did you put a vacuum gauge
on 
the line feeding the controls to see if the vac is really dropping off or
if 
it is something else?  if this is a 85.5 or later, did you check the 
servos - they aren't vac operated but the standard broken little white
clip 
can cause problems.  Did you check that the heater valve is closing when 
it's supposed to?  did you check the vac line routing and connections to
be 
sure they match the manual (you do have a manual, don't you?).  Have you 
considered a tech that maybe has a clue if you can't do this yourself? 
diagnosing this kind of thing isn't terribly hard - did you check the one 
way valve in the vac line to see that it's working?  is the vac reservoir 
ok?
<paul.regan@[EMAIL PROTECTED]
> wrote in message 
news:1181943869.671758.233770@[EMAIL PROTECTED]
>I just got the ac charged. The AC blows cold at idle, but when the
> throttle is opened the heat turns on and vents blow hot. The tech says
> the problem is in the vacuum hoses, but can't isolate it. Any ideas?
> 



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