Testing Defrost Flap vacuum servo?

[abatzis2@hotmail.com (Michael Abatzis)]

easy to test--just hook it up to another vacuum line and see if it 
opens/closes.  hard to replace.  i had to replace the whole defrost vent 
assembly (if the servo's bad, i think everything needs replaced--at least it 
all needs to be taken out and dissassembled), and the dash needed to be 
removed. ugh.

-Michael Abatzis
Hotlanta! GA
1988 Scirocco 2L 16v RIP-->parting, prelim web site, but not taking orders 
yet: www.learnlink.emory.edu/~mabatzi/mikes_page1.html
1987 Scirocco 2L 16v...


>From: "PK Commercial" <pkcommercial@mindspring.com>
>
>I notice that I only get partial airflow regardless of where I have the
>control head set.  Also, I can visibly see that the defrost flap is not
>closing or opening all the way.  I can hear a vacuum leak (hiss) whenever I
>have it set to A/C positions, Vent, or Floor heat settings.
>
>My guess is that the vacuum servo for the defrost flap is bad.  I am not
>sure how to test the servo itself.  Any specs for it holding vacuum or 
>other
>procedures?  Or any other ideas what the problem could be if not that 
>servo?
>
>Thanks,
>Phil Kerschner
>


_________________________________________________________________
MSN Photos is the easiest way to share and print your photos: 
http://photos.msn.com/support/worldwide.aspx