Oldsmobile Silhouette air conditioning

Tiny
GEORGE TUCKER
  • MEMBER
  • OLDSMOBILE
I have a 94 oldsmobile silhouette and the air conditioning unit is making a whining noise all the time. It still blows relatively cold air and I can still hear the compressor kick on and off. I don't know if there is anything inside the compressor ie. Bearings that would go bad over time or not. Everyone keeps pointing me towards the clutch but I'd like to know for sure if there is a way I can tell.
My question is how can I tell if it's the clutch making the noise or if it's the compressor itself?

If it is the clutch, how do I remove it? Is there some sort of clutch removel/puller I can purchase?
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Saturday, July 7th, 2007 AT 1:24 PM

8 Replies

Tiny
SDHEN
  • MEMBER
Whining? Are you sure its the AC? If you are quite sure I would take it to a mechanic. Most places will diagnose your problem for free. Dont let it go bad because the whole system may need to be replaced if that pump dies and water enters.
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Saturday, July 7th, 2007 AT 8:15 PM
Tiny
GEORGE TUCKER
  • MEMBER
Yeah, I'm positive that it's the ac. At first I thought it was the transmission making the noise and I took it in. The tranny mech took a look, and decided it wasnt the tranny. We took off the serpentine belt and the noise went away. The next thing we did was put the st-scope on it and it is coming from the ac unit.
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Sunday, July 8th, 2007 AT 12:29 AM
Tiny
ROCKWOOD84
  • MEMBER
There is a bearing in the a/c compressor right behind the pully and you have to have the clutch removal and install tool. It all comes in the same box I think the price is $30.00. What size motor?
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Sunday, July 22nd, 2007 AT 3:00 PM
Tiny
GEORGE TUCKER
  • MEMBER
It's got the 3.8
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Tuesday, July 24th, 2007 AT 10:26 PM
Tiny
ROCKWOOD84
  • MEMBER
[
quote="George Tucker"]It's got the 3.8[/quote]
you can take the serpentine belt off and see if you can move the pully back and forth on the sides. If it will wobble a bearing is probably going out. The clutch has a bearing and the compressor has a bearing. The clutch bearing will make a noise with a/c off. As it turn when the belt turns. The compressor bearing will only turn when a/c is on. If it is the clutch bearing you can pull the clutch[have to get a removal tool and install tool] if you have an autozone close to you they might loan you these. You will have to leave a deposit then get it back when you return tools. You will be able to do the clutch bearing without taking a/c compressor off. You will also need pully puller to pull pully off. The bearing is under the pully and has to be
pressed out and new one pressed back in. If it only makes the noise when a/c is on it will probably be the compressor bearing then the compressor will have to be taken off. And you will need a new seal pack for the compressor as the seal has to come out to knock the bearing out. Gm has a seal kit for $45.00
in front of the seal there is a big snap ring that has to come out and you will have to split the a/c compressor the push the seal out. Maybe it is just the clutch bearing. Let me know how it goes.
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Wednesday, July 25th, 2007 AT 10:08 AM
Tiny
GEORGE TUCKER
  • MEMBER
It sounds like it must be the clutch bearing then since it makes the noise all the time. Thanks again for the assistance.
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Sunday, July 29th, 2007 AT 5:27 PM
Tiny
ROCKWOOD84
  • MEMBER
Tuck, when you go to get the bearing ask for a pully bearing last time I put one in 10 years ago the price for one was $35.00. It has to be pressed out and the new one pressed in. But the good thing is you can do this with a/c compressor on the van. Take the belt off. Loosen the nut and pull the clutch off then pull the pully off. Get the new bearing in. Then bump the pully on the press the clutch back on with the clutch tool. Don't lose the keyway while you are doing all this.
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Monday, July 30th, 2007 AT 1:41 AM
Tiny
GEORGE TUCKER
  • MEMBER
Great. It's a relief knowing that I don't have to pull the compr. Off the thing. I was NOT looking forward to that. But. Even though I don't think it's the best looking car on the road (not even close) it does me a good job of hauling my road bikes around for different rides. It may have been a gracery gitter back in the day but now it's more of genreal purpose, haul all my sports equipment around.

Thanks again for all of the help. As soon as I get back home from this middle eastern desert, I'm gonna get 'er all fixed up.
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Monday, July 30th, 2007 AT 6:28 PM

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