Replace A/C compressor? - 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 04-11-2005, 01:40 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Feb 2004
Location: Iowa
Posts: 36
Thanks: 0
Thanked 0 Times in 0 Posts
zirconx is on a distinguished road
Default Replace A/C compressor?

I noticed this spring that my A/C compressor isn't working. No clicks when I turn it on. I tested for power at the compressor, and I do have power there when the A/C is on inside the car. So I don't think it'* a problem with any of the pressure switches. It sounds like it must be the clutch, huh?

I've heard that they are very hard to replace (just the clutch), they take a special tool to remove from the compressor and the compressor has to be removed from the car to do it anyway.

I was wondering how hard it is to put in a new compressor/clutch assembly? I'm waiting for a quote from a shop now, but I'll bet it'* going to be a lot. I can get a rebuilt compressor for about $220.

Loosen the belt, remove the freeon lines, 3 bolts and it'* out, right?

BTW this is on a 92 SE that has been retrofitted to use R134a. I have access to a set of hoses/gauges to refill the system with R134a when the new compressor is on.

Thanks,
-Ryan
zirconx is offline   Reply With Quote
Old 04-11-2005, 01:56 PM   #2
Senior Member
Posts like a Northstar
 
Join Date: Jan 2005
Location: Richfield, MN
Posts: 781
Thanks: 0
Thanked 0 Times in 0 Posts
alec_b is on a distinguished road
Default

Well u got part of it. You have to remove the front manifold and crossover pipe to do it also. But yes i think the 10mm on the lines, one electrical connection, and the 3 or 4 15mm (i think) bolts get it off. I've gone it on my '87 it'* not that hard but u might get a few cuts. It'* a tight fit. And it'* moderately heavy too.
alec_b is offline   Reply With Quote
Old 04-11-2005, 02:02 PM   #3
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Feb 2004
Location: Iowa
Posts: 36
Thanks: 0
Thanked 0 Times in 0 Posts
zirconx is on a distinguished road
Default

I hope you don't mean the exhaust manifold? The part on the compressor where the lines go in is called a manifold, too?

The compress comes out the bottom of the engine bay, right? Is there anything that needs to be taken off to make room for it to be pulled out? I guess your 87 would be different enough from the 92 that you couldn't answer that...

-Ryan
zirconx is offline   Reply With Quote
Old 04-11-2005, 02:55 PM   #4
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

On the 93 I did (should be the same as 92) I removed it from underneath. Remove that shield, as well as undo the two hardlines completely at both ends. The two hardlines wouldn't allow me to pull it out, so they had to go. Make sure to use two wrenches on the ends, cause they are mounted to fittings that are brazed in. One to the condenser (round metal thingy in back left corner) and one to the radiator on the left side. No need to remove the exhaust manifold.

Let me know if that was too confusing.
J Wikoff is offline   Reply With Quote
Old 04-11-2005, 05:12 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Feb 2004
Location: Iowa
Posts: 36
Thanks: 0
Thanked 0 Times in 0 Posts
zirconx is on a distinguished road
Default

I talked to the guy at the shop and he thinks it'* the clutch coil, because the compressor is not locked up, it just won't engage or click or anything.

He said it'* about $150 to put in a clutch coil, and around $1000 to put in a new compressor (he only uses new AC delco parts).

Anyone know how the clutch coil goes in? I would assume the compressor has to be removed, but I am surprised they would purge the system, remove the compressor/clutch, install the new coil, reinstall the compressor, and recharge the system for $150...

-Ryan
zirconx is offline   Reply With Quote
Old 04-11-2005, 09:00 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

Have you checked your freon level? Usually it'* the most common problem.
BillBoost37 is offline   Reply With Quote
Old 04-11-2005, 09:23 PM   #7
Senior Member
Posts like a Northstar
 
Join Date: Jan 2005
Location: Richfield, MN
Posts: 781
Thanks: 0
Thanked 0 Times in 0 Posts
alec_b is on a distinguished road
Default

Lol boy do i feel like an ***, i need to read more closely. I forget my car had the front header that hangs ALL the way down and blocks access and you don't. Sorry my mistake, that'* what i get for rushing. Sorry again!
alec_b is offline   Reply With Quote
Old 04-12-2005, 12:19 PM   #8
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Feb 2004
Location: Iowa
Posts: 36
Thanks: 0
Thanked 0 Times in 0 Posts
zirconx is on a distinguished road
Default

Quote:
Originally Posted by BillBost37
Have you checked your freon level? Usually it'* the most common problem.
Yes I did. And if it was low, I don't think I'd be getting power to the compressor, as I mentioned in the OP. I believe the low pressure switch cuts power to the compressor.

I'm going to drop it off today and have the shop look at it. I think it will either be the clutch coil, or the clutch as worn and is too far from the coil to be engaged. Either way should be a simple $150 fix.

Thanks for the responses.
-Ryan
zirconx is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Why don't mechanic shops replace AC compressor clutch???? Skyward Chevrolet 7 04-21-2015 10:10 PM
Going to replace the A/C Compressor in my '91 Lesabre. Planning to DIY. Any tips? Timmah Buick 1 08-28-2013 11:12 PM
How beneficial to replace the condenser when replacing the a/c compressor? GunsOfNavarone 2000-2005 9 07-14-2013 08:11 PM
Why you shouldn't wait to replace a bad AC compressor UPDATE Bugsi General GM Chat 10 07-27-2006 04:03 PM
Trying to replace ac compressor and clutch harley 1992-1999 6 09-09-2004 07:03 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 06:21 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.