A/C Compressor Clutch not engaging - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Pontiac When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-23-2011, 09:57 PM   #1
Junior Member
Thread Starter
 
Join Date: May 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
NarousPK is on a distinguished road
Angry A/C Compressor Clutch not engaging

I am having issues with 2 98 Pontiac Sunfires A/C compressor Clutch. One is a Sedan and the other is a convertible. A/C works base on the temperature outside. If it'* cold and I turn it on I get some cold air and when it'* warm I get warm air. After making some research online I found the pressure on the low pressure port was very low it wouldn't even read on both cars so I refilled it with R134. Cold air will still not come out of the A/C. I located the Compressor and it was spinning ok. the very end of the compressor (i believe the clutch) wasn't spinning so I tried spinning it with my hands and turn the engine on. Surprisingly it (the clutch) started moving and car was blowing cold air. I was very happy until this afternoon when I turned the car on and all i got was hot/warm air. So far only tried the R134 on one Sunfire. was wondering if I can get some ideas before I pay big benjies to have them looked at. Thanks in advance.
NarousPK is offline   Reply With Quote
Old 05-23-2011, 10:25 PM   #2
Junior Member
Thread Starter
 
Join Date: May 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
NarousPK is on a distinguished road
Default

Actually I double check and the compressor clutch is working fine after I put in the R134. Will this be a leak problem?
NarousPK is offline   Reply With Quote
Old 05-23-2011, 10:32 PM   #3
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

If your loosing pressure then you have a leak. You can add some dye and that will help you locate the leak.
Danthurs is offline   Reply With Quote
Old 05-23-2011, 10:42 PM   #4
Junior Member
Thread Starter
 
Join Date: May 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
NarousPK is on a distinguished road
Default

will give the dye a try this weekend
NarousPK is offline   Reply With Quote
Old 06-20-2011, 10:03 AM   #5
Senior Member
Posts like a 4 Banger
 
chris slee's Avatar
 
Join Date: Mar 2011
Location: clinton twp,mi
Posts: 133
Thanks: 0
Thanked 0 Times in 0 Posts
chris slee is on a distinguished road
Default

on all gms the clucth will ingage once when u turn it on and turn it off it doenst constintly kick on like other models but if ur 134a is low it will cause this prob or u got a bad compressor
chris slee is offline   Reply With Quote
Old 06-20-2011, 10:05 AM   #6
Senior Member
Posts like a 4 Banger
 
chris slee's Avatar
 
Join Date: Mar 2011
Location: clinton twp,mi
Posts: 133
Thanks: 0
Thanked 0 Times in 0 Posts
chris slee is on a distinguished road
Default

and if ur losing pressure check ur a/c condensor to if ur losing pressure but dye will solve all ur problems and help u better pin point the cause of the prob
chris slee is offline   Reply With Quote
Old 06-20-2011, 12:58 PM   #7
Junior Member
 
Join Date: Oct 2007
Location: Charlottesville, VA
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
wjsrooney is on a distinguished road
Default

Try locating a leak sealer with dye to help minimize your investments as well.
wjsrooney is offline   Reply With Quote
Old 06-24-2011, 10:55 PM   #8
Junior Member
Thread Starter
 
Join Date: May 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
NarousPK is on a distinguished road
Default

Sorry for the late reply...


I used the refrigerant with the UV dye and still couldn't find a leak. The clutch engaged alright and AC was on for a couple of hours. I did some physical check and found a leak (mainly bubbles) on the low pressure valve. I bought a new adapter and replaced the valve. Surprisingly, new valve also had bubbles coming out after completing evacuation and putting more refrigerant. This time around A/C was on for a good 6 days and on the 7th day back to where it all began. Should I replace the high pressure valve also? It'* hard to see if there'* a leak there due to where it'* mounted. Any advise what may be going on?
NarousPK is offline   Reply With Quote
Old 06-25-2011, 09:11 PM   #9
Senior Member
Posts like a 4 Banger
 
chris slee's Avatar
 
Join Date: Mar 2011
Location: clinton twp,mi
Posts: 133
Thanks: 0
Thanked 0 Times in 0 Posts
chris slee is on a distinguished road
Default

once u filled it up did u here air coming out anywhere like from the front by the condensor?
chris slee is offline   Reply With Quote
Old 06-26-2011, 09:59 PM   #10
Junior Member
Thread Starter
 
Join Date: May 2011
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
NarousPK is on a distinguished road
Default

I didn't notice any air coming out from or around the condenser. Will this be something I would have notice right away or need to physically inspect the condenser? If there'* a air coming out what will that imply?
NarousPK is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1996 A/C clutch not engaging 96ville 1992-1999 7 02-10-2010 08:40 PM
95 Bonniville - A/C Clutch not engaging, No Criuse, SES ON pappyl 1992-1999 9 09-26-2007 09:48 AM
A/C Clutch not engaging. Easy to change? haulin_ass 2000-2005 6 07-28-2007 12:18 PM
A/C Compressor Clutch not Engaging Muslimsteel 1992-1999 5 04-27-2005 11:10 PM
AC compressor clutch not engaging theJMFC 1987-1991 10 07-28-2003 01:38 AM


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 12:00 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.