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.

AC Compressor Going Bad?

Thread Tools
 
Search this Thread
 
Old 09-08-2003, 10:23 PM
  #1  
Senior Member
Posts like a Turbo
Thread Starter
 
parallelcircuits's Avatar
 
Join Date: Apr 2003
Location: Arkansas
Posts: 409
Likes: 0
Received 0 Likes on 0 Posts
parallelcircuits is on a distinguished road
Default AC Compressor Going Bad?

I was driving with my windows down today so of course the AC wasn't on, until my son in the back seat didn't want the windows down (going 70mph probably gets a bit windy back there), so I rolled up the windows and turned on the AC. A few thing happened. My temp went up by probably 10 degrees and also I lost quite a bit of power. I know I will loose some power with the AC on but this was more than usual. The whole shudder that has been talked about recently showed back up. So I am thinking there is something wrong with my AC system. I did a few more test and while going about 45 with AC on temp gets almost to 210 to 220 but with the AC off it will drop back down to 200.
Old 09-09-2003, 01:51 AM
  #2  
Senior Member
Posts like a Turbo
 
ron350's Avatar
 
Join Date: May 2003
Location: B'ham.AL
Posts: 435
Likes: 0
Received 0 Likes on 0 Posts
ron350 is on a distinguished road
Default AC

Hi Michael the compressor on my 96 is going bad too. These compressors are called V5'*, and are known for front seal, and side case leaks. Mine started leaking oil where the cases come togathe. Before i knew oil was lost the compressor started rattleing slightly when on.
Old 09-09-2003, 07:32 AM
  #3  
Senior Member
Posts like a Turbo
Thread Starter
 
parallelcircuits's Avatar
 
Join Date: Apr 2003
Location: Arkansas
Posts: 409
Likes: 0
Received 0 Likes on 0 Posts
parallelcircuits is on a distinguished road
Default

Mine was making some noise at the beginning of the summer and I put some oil in it and the noise stopped.
Old 09-09-2003, 12:41 PM
  #4  
Senior Member
True Car Nut
 
acg_ssei's Avatar
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 2,409
Likes: 0
Received 1 Like on 1 Post
acg_ssei is on a distinguished road
Default Re: AC Compressor Going Bad?

Originally Posted by parallelcircuits
I was driving with my windows down today so of course the AC wasn't on, until my son in the back seat didn't want the windows down (going 70mph probably gets a bit windy back there), so I rolled up the windows and turned on the AC. A few thing happened. My temp went up by probably 10 degrees and also I lost quite a bit of power.
That shouldn't happen. On mine, the temperature actually goes _down_ slightly with the A/C on, because the system overrides the thermal switch and runs the cooling fans continuously while the A/C is operating.

1) Do you have the electronic A/C controls? If so, do you have a blinking temperature display for the first two minutes of driving? If so, there'* an error code you need to extract.

2) Have you verified that the cooling fans are operating while the A/C is on?
Old 09-09-2003, 01:25 PM
  #5  
Senior Member
True Car Nut
 
fuddyduddy121's Avatar
 
Join Date: Sep 2002
Posts: 3,392
Likes: 0
Received 0 Likes on 0 Posts
fuddyduddy121 is on a distinguished road
Default

Try turning the compressor by hand to see if it locks or binds up anywhere.
Old 09-09-2003, 01:36 PM
  #6  
Senior Member
Posts like a Turbo
Thread Starter
 
parallelcircuits's Avatar
 
Join Date: Apr 2003
Location: Arkansas
Posts: 409
Likes: 0
Received 0 Likes on 0 Posts
parallelcircuits is on a distinguished road
Default

Originally Posted by acg_ssei
That shouldn't happen. On mine, the temperature actually goes _down_ slightly with the A/C on, because the system overrides the thermal switch and runs the cooling fans continuously while the A/C is operating.

1) Do you have the electronic A/C controls? If so, do you have a blinking temperature display for the first two minutes of driving? If so, there'* an error code you need to extract.

2) Have you verified that the cooling fans are operating while the A/C is on?
I do not have the Electronic AC controls, and the fans run when the AC is turned on.
Would this throw any minor codes I would need a reader to look at?

Originally Posted by fuddyduddy121
Try turning the compressor by hand to see if it locks or binds up anywhere.
How do I do that. Doesn't the Compressor have a clutch in it that is electronically controlled.
Old 09-09-2003, 03:52 PM
  #7  
Senior Member
True Car Nut
 
acg_ssei's Avatar
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 2,409
Likes: 0
Received 1 Like on 1 Post
acg_ssei is on a distinguished road
Default

Originally Posted by parallelcircuits
I do not have the Electronic AC controls, and the fans run when the AC is turned on. Would this throw any minor codes I would need a reader to look at?
Not to my knowledge. The manual A/C doesn't have a processor to display its own error codes, since it doesn't have a controller that would detect them or need to display them.

Originally Posted by parallelcircuits
Originally Posted by fuddyduddy121
Try turning the compressor by hand to see if it locks or binds up anywhere.
How do I do that. Doesn't the Compressor have a clutch in it that is electronically controlled.
Yes, but it'* deactivated when the engine is off. Just grab the hub with your hand and try to turn it. It should turn relatively freely.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SilverSleeper8704
Buick
15
03-30-2020 09:41 PM
mrbell83
1992-1999
22
10-03-2006 08:25 PM
LT
1992-1999
2
05-30-2006 01:44 PM
BonnieBrougham
Lounge
3
12-16-2004 05:38 PM



Quick Reply: AC Compressor Going Bad?



All times are GMT -4. The time now is 08:04 AM.