My A/C - 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 06-21-2006, 07:14 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2006
Location: Waldorf, MD
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
blue94bonnie is on a distinguished road
Default My A/C

My A/C is not getting cold. I thought it was low on R134 but it'* full. When you turn it on you here it click on then click off. When I had the hose hooked up to fill it up, when it clicked the gauge would go up, then a second later it clicked off and the gauge would go down again. It keeps repeating this proces. Thanks for any help.
blue94bonnie is offline   Reply With Quote
Old 06-21-2006, 07:34 PM   #2
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

Sounds like your system isn't full. What pressures are you seeing and how do you know it'* full?
BillBoost37 is offline   Reply With Quote
Old 06-21-2006, 07:47 PM   #3
Junior Member
Thread Starter
 
Join Date: Jun 2006
Location: Waldorf, MD
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
blue94bonnie is on a distinguished road
Default

Well the gauge has a low, full, warning, and danger. I was at the end of full and a little in warning.
blue94bonnie is offline   Reply With Quote
Old 06-21-2006, 09:24 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

Quote:
Originally Posted by blue94bonnie
I was at the end of full and a little in warning.
blue, sounds as if you have a slight overpressure condition.
markwb is offline   Reply With Quote
Old 06-21-2006, 11:09 PM   #5
Member
Posts like a V-Tak
 
Join Date: Jun 2006
Posts: 97
Thanks: 0
Thanked 0 Times in 0 Posts
kristie_jeff is on a distinguished road
Default

Is the cooling fan coming on when the compressor "clicks" on? If not that could be causing your high pressure situation.
kristie_jeff is offline   Reply With Quote
Old 06-22-2006, 01:54 AM   #6
Senior Member
Posts like a Supercharger
 
Join Date: Mar 2006
Location: Chicago
Posts: 193
Thanks: 0
Thanked 0 Times in 0 Posts
BlownBuick is on a distinguished road
Default

How long between clicks?

3 seconds or 15-20 seconds.

3 seconds would mean your low on freon. 15-20+ is healthy.

Does that gauge read full with the A/C on, or is that with it off?

It should click(compressor stops), gauge slowly rises to warning, click (compressor spinning) gauge moves into good, click (compressor stops), gauge slowly rises to warning, etc.

Post exacly what the gause does with te A/C on, and the time it takes to do it.
BlownBuick is offline   Reply With Quote
Old 06-22-2006, 01:59 AM   #7
Senior Member
Posts like a Supercharger
 
Join Date: Mar 2006
Location: Chicago
Posts: 193
Thanks: 0
Thanked 0 Times in 0 Posts
BlownBuick is on a distinguished road
Default

Feel the reciever/dryer (big silver thing on A/C lines) It should be VERY cold, like 35* cold.
BlownBuick is offline   Reply With Quote
Old 06-22-2006, 09:47 AM   #8
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

I'm going to start a new thread. AC is beginning to get out of control.

You can not rely on the coloration or general indication of correct pressure on a gauge that was not made specifically for your car.

Also..do not rely on another year FSM for the correct pressure as the correct pressure could have changed from year to year.

You need to find out the correct pressure from the correct year FSM.

Per my 97 FSM...my car'* correct pressure was not anything like that stupid generic gauge said it should be.

Follow the gauge if you want... my gut tells me you may be low, but I'm not there with an FSM and an gauge. If you get the proper information, that system will be running like a champ in little time.
BillBoost37 is offline   Reply With Quote
Old 06-22-2006, 10:01 AM   #9
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Agreed Bill.... And even then you have to take into account the Type of compressor on you car.... For 94 it had the H6 compressor.....

Later years such as the 97'* had a V5 which is a variable compressor that does not need to cycle as the older H6'* did

Also keep in mind that R134a operates at diffrent pressures than does R12.... Myself and Bill were having that discussion about my 91 as I switched to R134a 6 years ago...

You really need a service manual and a set of gages to do it right

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 06-22-2006, 10:11 AM   #10
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

All already mentioned here..but good info that we should keep in mind.

http://www.bonnevilleclub.com/forum/...ic.php?t=57222
BillBoost37 is offline   Reply With Quote
 
 
Reply


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 09:31 AM.


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.