strange noise from a/c
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Teching In
Joined: Jul 2005
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strange noise from a/c recently when i turn the a/c on my 2000 ss, it makes a high pitched whining noise which goes up and down with motor rpm.
the ac belt and also the serpentine belt where replaced this morning. >no change< then i pulled it up on the ramps and grabbed a can of wd-40 and started spraying pulleys, belts, tensioners etc to locate the noise. i thoughly soaked the ac clutch by shooting a whole can through the multiple holes on the face of the ac clutch and let it soak for a couple hours. >no change< the strange thing is that when i spray the ribbed surface of the new belt with wd-40 while the car is running with the a/c on the whining noise goes away for a minute or 2 then slowly return. my neighbors think i installed a supercharger or turbo (literally what it sounds like). if it where bearings going out in the compressor, why would spraying the belt make it subside? any ideas?
the ac belt and also the serpentine belt where replaced this morning. >no change< then i pulled it up on the ramps and grabbed a can of wd-40 and started spraying pulleys, belts, tensioners etc to locate the noise. i thoughly soaked the ac clutch by shooting a whole can through the multiple holes on the face of the ac clutch and let it soak for a couple hours. >no change< the strange thing is that when i spray the ribbed surface of the new belt with wd-40 while the car is running with the a/c on the whining noise goes away for a minute or 2 then slowly return. my neighbors think i installed a supercharger or turbo (literally what it sounds like). if it where bearings going out in the compressor, why would spraying the belt make it subside? any ideas?
Does the belt slip on the compressor when you douse it w/ WD?
Sure sounds like you have a compressor that is going bad. They can make lots of noise when going south. Kinda common occurance.
I would stop running it & get it fixed. If the compressor is coming apart, it is sending metal debris into the system. Thats what flushing the A/C system is for to get that debris out. It gets most of it, depending on what kind of flush system, the method & the operator thoughness. But depending upon how bad the compressor failure was & the amount of debris spewn into the system. It can come into the replacemnt piece & damage it.
Sure sounds like you have a compressor that is going bad. They can make lots of noise when going south. Kinda common occurance.
I would stop running it & get it fixed. If the compressor is coming apart, it is sending metal debris into the system. Thats what flushing the A/C system is for to get that debris out. It gets most of it, depending on what kind of flush system, the method & the operator thoughness. But depending upon how bad the compressor failure was & the amount of debris spewn into the system. It can come into the replacemnt piece & damage it.
It could be the type of belt that you used. Ive seen belts that dont have the continous ribs squeal on vehicles. Hope you compressor will be ok if you sprayed that much wd40 in the clutch area.
Originally Posted by courtaney
recently when i turn the a/c on my 2000 ss, it makes a high pitched whining noise which goes up and down with motor rpm.
the ac belt and also the serpentine belt where replaced this morning. >no change< then i pulled it up on the ramps and grabbed a can of wd-40 and started spraying pulleys, belts, tensioners etc to locate the noise. i thoughly soaked the ac clutch by shooting a whole can through the multiple holes on the face of the ac clutch and let it soak for a couple hours. >no change< the strange thing is that when i spray the ribbed surface of the new belt with wd-40 while the car is running with the a/c on the whining noise goes away for a minute or 2 then slowly return. my neighbors think i installed a supercharger or turbo (literally what it sounds like). if it where bearings going out in the compressor, why would spraying the belt make it subside? any ideas?
the ac belt and also the serpentine belt where replaced this morning. >no change< then i pulled it up on the ramps and grabbed a can of wd-40 and started spraying pulleys, belts, tensioners etc to locate the noise. i thoughly soaked the ac clutch by shooting a whole can through the multiple holes on the face of the ac clutch and let it soak for a couple hours. >no change< the strange thing is that when i spray the ribbed surface of the new belt with wd-40 while the car is running with the a/c on the whining noise goes away for a minute or 2 then slowly return. my neighbors think i installed a supercharger or turbo (literally what it sounds like). if it where bearings going out in the compressor, why would spraying the belt make it subside? any ideas?
