08-12-2008, 09:02 PM
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#1
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GX Member
Join Date: Jul 2007
Location: pensacola
Posts: 147
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Question Pertaining to A/C
Ok my car is making a knocking noise but it is only happening when the A/C is turned on. This noise has been happening ever since i put my motor back in and i can't figure out why! I would figure if it was cause it was loose somewhere it probably would have came off by now...
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08-12-2008, 09:03 PM
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#2
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Keepin it Real
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 12,522
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could be the bearings in the a/c compressor.
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2015 Audi SQ5
2000 Alero GLS Coupe - still in the family, but I don't drive it anymore
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08-12-2008, 09:42 PM
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#3
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on vacation
Join Date: Aug 2006
Location: that way
Posts: 2,169
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how loud is this knock? mine (when the clutch worked) would sound like its very own little engine when I turned it on.. but it works 100% and blows ice cold air.. so I dont worry about it.. especially on a hot and humid summer day.. the ice cold air over poweres the little knocking sound lol
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WILL NEVER FORGET
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08-12-2008, 10:02 PM
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#4
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GX Member
Join Date: Jul 2007
Location: pensacola
Posts: 147
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the knock is loud outside the car but you cant hear it when you turn the radio up lol. My A/C still works, sometimes it doesnt blow as cold as other times,
the knock sounds so loud i thought it was a lifter or rod knocking at first. if it wasnt pouring outside i would go record it but looking at the radar looks like someone sneezed on it.
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08-12-2008, 10:36 PM
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#5
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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The a/c clutch may be loose, maybe use a charge,
Try tighting the a/c clutch bolts. Should be pretty easy to get to with the car up on a ramp, if that doesn't work, the compressor may be going
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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
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08-12-2008, 11:31 PM
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#6
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on vacation
Join Date: Aug 2006
Location: that way
Posts: 2,169
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blah.. my compressor pissed me off the other day- and that bolt I took off of it.. now that I think about it.. I never put it back on the pulley LOL
so im driving around with no bolt holding on the clutch or pulley- guess that thing is really on there.. broke a tool that I got from the auto parts store trying to get the damn pulley off too..
200 pounds of ass (me) and a crowbar didnt even budge it either.. so I dont know.
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WILL NEVER FORGET
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08-13-2008, 01:01 AM
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#7
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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^special tool needed?
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2001½ F150 XLT Crew Cab- true dual glasspacks with x-pipe, AEM intake, SCT X3 with VMP custom tunes, full stereo system, HID 55w heads and 35w fogs, 35% tint front and 20% rear, Lightning tail lights
04 F6 Sno Pro Team edition- MBRP race can, ODS clutch kit
01 YZ125- bored out to 144, PnP cylinder and head, Pro Circuit WORKS suspension, many other mods
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08-13-2008, 10:01 PM
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#8
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GX Member
Join Date: Jul 2007
Location: pensacola
Posts: 147
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http://www.youtube.com/watch?v=TFjQsbIZ1Cc
This is the sound its making, the sound is kinda amplified on the camera but o well you get the jist of it...
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08-14-2008, 01:01 AM
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#9
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Hot and Fluffy.
Join Date: Aug 2007
Location: Alberta, Canada
Posts: 1,699
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at least your A/C works. Mine just makes everything Sticky. It's not even cold.
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08-14-2008, 01:42 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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Do your cooling fans come on with the A/C?
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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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08-14-2008, 04:48 PM
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#11
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GX Member
Join Date: Jul 2007
Location: pensacola
Posts: 147
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Yes both fans do, if i don't run a/c all the time i will over heat ;(
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08-22-2008, 04:43 PM
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#12
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GX Member
Join Date: Jul 2007
Location: pensacola
Posts: 147
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The problem i had, actually had nothing to do with a/c. Turns out the sc rews that go to the torque converter from the flywheel had come out and that is what was causing the noise... Problem is fixed now tho and all is good
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