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# A/C Vacuum Leak

#1
05-28-08, 07:43 PM
Member
Join Date: Jun 2005
Posts: 21
A/C Vacuum Leak

When a vacuum is pulled on an A/C sytem in a auto and the vacuum does not hold, is there a way of finding out where the vacuum is leaking? Thanks!

#2
05-29-08, 05:34 AM
Member
Join Date: Dec 2001
Posts: 2,538
it will usually require atleast a small charge of refrigerant to be added to the system to find the leak with a detector, smaller leaks may only show up by charging system and adding dye.

#3
05-29-08, 08:01 AM
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Join Date: Dec 2007
Location: Nashville
Posts: 635
Received 1 Vote on 1 Post
Originally Posted by etquint
When a vacuum is pulled on an A/C sytem in a auto and the vacuum does not hold, is there a way of finding out where the vacuum is leaking? Thanks!
when checking for the leak, don't forget the schrader valves. the can start to leak and a lot don't have caps on them.
just a thought!