07-17-2008, 07:19 PM
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#1
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GLS member
Join Date: Dec 2006
Location: Montreal, Qc, Canada
Posts: 1,876
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Crap... A/C compressor
So well, here's the problem. I noticed that my A/C compressor is making noise, but not all the time. Its like something is loose and metal is slightly rubbing against metal.
Compressor still blows cold. When I engage the A/C (or put it on defrost) the noise is gone. When I turn the A/C back off, noise comes back.
So what now? does it only need some greasing? Could it seize? I guess theres really someone up there that wants me to take my supercharger off and on again!
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2 door 2000 Black GX With a stick: M45 eaton supercharger - Quad4's 57mm Throttle body - Custom WAI - KYB GR-2 struts - CM Lowering springs - Front and rear strut tower brace - R1 concept zinc plated drilled/slotted rotors with semi-metallic pads - short shifter.
Quote:
Originally Posted by Alerosaint
the #6 bolt torque..its impossible to get...unless I use telekenesis
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07-17-2008, 07:36 PM
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#2
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GLS member
Join Date: Jun 2004
Location: New Prague, MN
Posts: 2,481
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Mine did that for a while. It went away in time.
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07-17-2008, 07:53 PM
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#3
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H&B Shipping Agent
Join Date: Nov 2003
Location: Waterbury Center, VT
Posts: 4,450
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pretty common my cutlass used to do it, just leave your AC on with the fan off and you wont have a problem. Otherwise it is the clutches in side that need to be replaced.
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07-17-2008, 08:09 PM
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#4
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GLS member
Join Date: Dec 2006
Location: Montreal, Qc, Canada
Posts: 1,876
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I'd leave it on, but theres such a difference in power from when the A/C is on and when its not. It also sucks on MPG.
__________________
2 door 2000 Black GX With a stick: M45 eaton supercharger - Quad4's 57mm Throttle body - Custom WAI - KYB GR-2 struts - CM Lowering springs - Front and rear strut tower brace - R1 concept zinc plated drilled/slotted rotors with semi-metallic pads - short shifter.
Quote:
Originally Posted by Alerosaint
the #6 bolt torque..its impossible to get...unless I use telekenesis
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07-17-2008, 08:17 PM
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#5
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on vacation
Join Date: Aug 2006
Location: that way
Posts: 2,169
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mine sounds like a piece of rejected technology that just wont ever die. sorta like a pod racer off of star wars, but alot more quiet- blows ice cold though.
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WILL NEVER FORGET
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07-18-2008, 12:25 AM
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#6
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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It's the A/C clutch making a "scrubbing" or "whirring" sound. It's really common on the V5 compressors.
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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07-18-2008, 12:31 AM
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#7
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Aleromod's most pointless thread starter
Join Date: Aug 2007
Location: Jersey (north and south are 2 diff. states)
Posts: 2,349
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Quote:
Originally Posted by Cliff8928
It's the A/C clutch making a "scrubbing" or "whirring" sound. It's really common on the V5 compressors.
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i want a v5 engine 
__________________
Quote:
Originally Posted by adam337
whats with all the useless threads lately?..
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New project 1992 460 big block ford notchback mustang
Goal - Mid 11s all motor.
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07-18-2008, 01:38 AM
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#8
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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Quote:
Originally Posted by 01silveralero
i want a v5 engine |
V5 is the Variable displacement 5-cylinder AC compressor.....
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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07-18-2008, 02:38 AM
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#9
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GLS member
Join Date: Dec 2006
Location: Montreal, Qc, Canada
Posts: 1,876
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Thanks Cliff for the precision.
I dont really care if it makes that kind of noise every once and then, but whats the worse scenario on the long term? A/C not working? compressor Seizing?
__________________
2 door 2000 Black GX With a stick: M45 eaton supercharger - Quad4's 57mm Throttle body - Custom WAI - KYB GR-2 struts - CM Lowering springs - Front and rear strut tower brace - R1 concept zinc plated drilled/slotted rotors with semi-metallic pads - short shifter.
Quote:
Originally Posted by Alerosaint
the #6 bolt torque..its impossible to get...unless I use telekenesis
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07-18-2008, 03:09 AM
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#10
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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compressor wont seize. It just wears the clutch a little bit on the compressor. The clutch can be serviced separately though.
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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07-18-2008, 06:26 AM
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#11
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,876
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mine made crappy metal scraping noises and turned off when i turned on the a/c, then eventually never turned off, then died. diagnosed compressor clutch fails.
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07-18-2008, 09:59 AM
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#12
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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Yeah it sounds like the clutches are starting to go. Nothing to really worry about if the AC is still working as it should.
I never replaced the clutches in mine, I just got a new compressor. My compressor had a hole in it anyway
__________________
33% ALEROMOD OWNER!!
2000 Olds Alero 3400 SFI 14.53 @ 94.93
1985 Olds Delta 88 307 SBO 17.96 @ 76.99
2007 Volvo V50 T5 6M 15.782 @ 89.12
www.facebook.com/kb0177
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07-18-2008, 10:00 AM
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#13
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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Quote:
Originally Posted by 01silveralero
i want a v5 engine |
We are talking compressors here, not enignes.
Again, since you can't tell the difference, maybe you shouldn't be doing this 3800 s/c swap 
__________________
33% ALEROMOD OWNER!!
2000 Olds Alero 3400 SFI 14.53 @ 94.93
1985 Olds Delta 88 307 SBO 17.96 @ 76.99
2007 Volvo V50 T5 6M 15.782 @ 89.12
www.facebook.com/kb0177
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07-18-2008, 10:22 AM
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#14
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GLS member
Join Date: Dec 2006
Location: Montreal, Qc, Canada
Posts: 1,876
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Ya I was looking at some compressors on Ebay, they arent that expensive. Maybe what I'll do is gather a starter, an Alternator and an A/C compressor and swap them all one shot so I dont have to take the supercharger out 3 times 
Silver : Owned ! 
__________________
2 door 2000 Black GX With a stick: M45 eaton supercharger - Quad4's 57mm Throttle body - Custom WAI - KYB GR-2 struts - CM Lowering springs - Front and rear strut tower brace - R1 concept zinc plated drilled/slotted rotors with semi-metallic pads - short shifter.
Quote:
Originally Posted by Alerosaint
the #6 bolt torque..its impossible to get...unless I use telekenesis
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