[V8] A/C Dash Vents

[Tony and Lillie]

My V8Q at 330K is on it's original charge and compressor. However, I bought 
one that had 213K and the compressor had been replaced at 180K, so I guess 
mine is a lucky one.

The vacuum lines are color coded, not too sure if the manual gives specifics 
as to what does what, but somewhere I'd writen a doc or drawn a pic for a 
future key. I'll have to see if I can find it.

My 100, however, is already low on R12, and I just charged it about two 
months ago :(    Time to find the leak.

Tony
----- Original Message ----- 
Subject: Re: [V8] A/C Dash Vents


> Mine is doing the same thing.  I replaced the control unit - which helped
> for about a day - then the same thing again.  I think it is either a
> stuck/sticky vacuum motor or vacuum leak. Neither is going to be fun to
> find or fix.  My game plan is to expose the vacuum connector going to the
> controller, split it, and apply vacuum from a hand pump to each line
> individually to test the motors and test for leaks.  Not sure what else to
> do.  There is a diagnostic mode on the control head - but it really only
> tells you what you already know.
>
> I am also temped to do the R134A conversion, but I think there is some
> sort of crack in my compressor casting.  It works, but won't hold a full
> charge, and if I take out one of the mounting bolts (like I just did for
> the clutch job) a small blast of A/C juice comes out.  Since the leak is
> into the bolt hole it seems to stabilize itself.
>
> Meanwhile, my explorer has eclipsed 200K miles on the factory A/C charge.
> I have given serious thought to adapting a Ford compressor into my car.
> They are cheap (relatively) and seem to last for ever.
>
> Dave