R134a - how to drain the system - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-29-2005, 04:51 PM   #1
Junior Member
Thread Starter
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default R134a - how to drain the system

R134a is the envirmentally safer chemical used in the AC systems on the newer cars. I need to dismantel my entire AC system, but how do I get the coolant out of it? Being that it is the "O-zone friendly" one can I just release it into the air? or do I need to get some sort of purge kit?
SSEi95 is offline   Reply With Quote
Old 06-03-2005, 05:55 PM   #2
Junior Member
Thread Starter
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

:bump:
SSEi95 is offline   Reply With Quote
Old 06-03-2005, 08:53 PM   #3
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default

The air conditioning system should be evacuated (checks system integrity & removes non condensable gases) with a roughing pump prior to putting a new freon charge in.
markwb is offline   Reply With Quote
Old 06-03-2005, 08:55 PM   #4
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default

Oh yeah, another thing is if you break into the system after venting, don't allow system to be open to atmosphere, it will destroy the receiver/dryer which is filled with desicant material.
markwb is offline   Reply With Quote
Old 06-03-2005, 10:15 PM   #5
Junior Member
Thread Starter
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

well, the whole AC system needs to be pulled from the car, and I mean EVERYTHING. What is the best route to do this then? And the car is not moveable right now (see sig pic below... lol)
SSEi95 is offline   Reply With Quote
Old 06-03-2005, 11:19 PM   #6
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Gman...follow the same procedure Nman uses to do his condenser.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
R12 to R134a Conversion willwren 1992-1999 28 09-26-2012 05:24 AM
R12-r134a and my 92 bonneville. viking12344 1992-1999 6 08-02-2006 07:30 PM
R12 to R134a conversion Hans 1992-1999 5 04-15-2006 11:10 PM
r134a proper recharge pressure cndodge 1992-1999 2 08-06-2005 10:54 AM
R12 to R134a conversion PontiacLover 1992-1999 15 08-06-2003 12:44 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:08 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.