Advice on identifying vacuum leak in A/C system - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007 Forum for discussion of the Ford Taurus, Mercury Sable and Ford Taurus SHO. Covers vehicle years: 1986-2007

 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 08-26-11, 06:49 PM Thread Starter
2bef
 
Join Date: Oct 2010
Location: Allen, TX
Posts: 6
Advice on identifying vacuum leak in A/C system

I have a 2001 Taurus 3.0 OHV with 138K miles. My A/C clutch went bad. Before the clutch died the AC worked great so there was no compressor failure therefore no need to flush the system, replace the accumulator, etc.

There is no room to just replace the clutch with the compressor installed so I had to remove the entire clutch/compressor assembly. As it turns out, neither O'Reilly's or Auto Zone had the tool to install the new clutch coil so the entire compressor was going to have to come out anyway.

I put it all back together, try to pull a vacuum and the best I can get down to is -18. When I close the gauges after about 10 min most of the -18 is gone.

This is my first time to tackle an A/C repair. Clearly there is a leak. The only part that was removed was the manifold from the back of the compressor. I had to move the manifold around some to get the compressor out.

I'm hoping that some wise, experienced Taurus owners/mechanics have had a similar experiences and can share how they solved the problem and where they found their leak.

Any assistance, prayers, sympathy is greatly appreciated.

2bef

2bef is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 08-26-11, 07:00 PM
Administrator
 
Join Date: Sep 2006
Location: Arkansas
Posts: 6,814
Re: Advice on identifying vacuum leak in A/C system

The only thing I can think of is the O rings at the rear of the compressor. It should pull down close to -30 and hold steady for at least 30 minutes.
jwko is offline  
post #3 of 5 (permalink) Old 08-26-11, 10:38 PM Thread Starter
2bef
 
Join Date: Oct 2010
Location: Allen, TX
Posts: 6
Re: Advice on identifying vacuum leak in A/C system

Thanks for the reply. The new compressor came with the rings installed. I did not remove them but I did rub oil on them.

When I was only able to get a -18 vacuum I took off the manifold and I noticed there is not an exact fit between the manifold and the compressor I guess because of the notch in the manifold? I installed it again but still only got to -18 vacuum.

Both times the manifold appeared to be flush with the back of the compressor. I wonder if I'm just not getting the openings on the manifold centered over the o-rings just right?

I will take it off again and give it another try. Nothing to lose at this point.
2bef is offline  
post #4 of 5 (permalink) Old 08-26-11, 11:18 PM
Administrator
 
Join Date: Sep 2006
Location: Arkansas
Posts: 6,814
Re: Advice on identifying vacuum leak in A/C system

The only other thing I can think of is possibility a leak in either the high or low side (gauge) hose.
jwko is offline  
post #5 of 5 (permalink) Old 08-29-11, 08:03 AM
Moderator
 
Join Date: Nov 2008
Posts: 1,137
Re: Advice on identifying vacuum leak in A/C system

That manifold is very tricky to put on PERFECTLY STRAIGHT. It can go off center and
bind up on the compressor if the small alignment rings on the manifold are not in perfectly.
It can actually be a few thousand out and look perfect but will leak. You will have to
pressurize the system and use a soap and water mixture to find the exact point of the
leak AND DON'T USE AIR. You may have put a small crack in the tubing where it meets the
manifold. Very easy to do. If that has happend you replace the manifold.
chipset is offline  
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome