GTP 2001 AC doesn't work - 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 05-26-2010, 07:48 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2009
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
mdbonnie is on a distinguished road
Default GTP 2001 AC doesn't work

The AC in my 2001 GTP isn't working. I checked the fuse and I checked the relay and all are good. When I turn on the AC I should hear a click and hear the compressor come on but there is no click or slight blink in the lights and no drag on the motor.

Anything else to check?

Last edited by mdbonnie; 05-26-2010 at 07:51 PM.
mdbonnie is offline   Reply With Quote
Old 05-26-2010, 08:00 PM   #2
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

Can you tell if the clutch is engaging?
Danthurs is offline   Reply With Quote
Old 05-26-2010, 08:05 PM   #3
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2009
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
mdbonnie is on a distinguished road
Default

Doesn't look like it is engaging.
mdbonnie is offline   Reply With Quote
Old 05-26-2010, 08:06 PM   #4
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

Check the plug, make sure it'* clean and plugged in.
Danthurs is offline   Reply With Quote
Old 05-26-2010, 08:12 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2009
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
mdbonnie is on a distinguished road
Default

The plug into the compressor? I just looked it looks like it is in but I will pull it out and re-attach it.
mdbonnie is offline   Reply With Quote
Old 05-26-2010, 08:16 PM   #6
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

Check it for corrosion.
Danthurs is offline   Reply With Quote
Old 05-26-2010, 08:20 PM   #7
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

Two other possibilities, a blown fuse, not sure where that is on your car. Or low refrigerant. There should be a low refrigerant cut out that will prevent the clutch from engaging.
Danthurs is offline   Reply With Quote
Old 05-26-2010, 09:15 PM   #8
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2009
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
mdbonnie is on a distinguished road
Default

Pulled the plug out. It looked ok and plugged it back in and the clutch now spins!!! But, still blowing hot air so perhaps refrigerant is the next step? Fuse is definitely not blown.
mdbonnie is offline   Reply With Quote
Old 05-26-2010, 10:38 PM   #9
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2009
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
mdbonnie is on a distinguished road
Default

Connected a pressure gauge to it and it was below 25 lb. Added 18 oz and it it starting to blow a little cooler. Will get another can tomorrow to see if I can get it up over 30 lb.
mdbonnie is offline   Reply With Quote
Old 05-27-2010, 07:52 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

Be careful with how much you put in. Total system only holds approx 2lbs. When you plugged back in and it worked, that meant there was a decent amount in the system. 18oz is a little over half the system. W/o pressure gauges on both sides and the FSM that gives you a chart of high/low you won't know the correct level of freon based on the temp and humidity.

I thought mine wasn't working well enough, but then read the FSM and it'* very thorough and interesting. Technically it'* only supposed to be about 20F cooler from the vents than external temps and humidity plays a large factor in that too.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
My A/C Doesn't work? tutu67 General GM Chat 4 05-23-2003 12:41 AM
ABS, traction control doesn't work 95 sse jeffreyeffrey 1992-1999 8 04-21-2003 05:14 PM
radio doesn't work help! rwe62382 1992-1999 13 03-12-2003 05:58 PM
Spedometer doesn't work!?!? Buddha Jones 1992-1999 4 09-25-2002 08:51 PM


Tags
air, air mix door, clutch, conditioning, grand, low, prix, refiridgerant

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 07:03 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.