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Old 04-27-2012, 12:37 PM   #1
Ansong
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Default HELP!!! AC Compressor LOUD SQUEAL! I Mean LOUD!

So I just got ac in my car again and bought a new belt and recharge the ac. First few days no problems. The past few days the temp dropped and I haven't used the ac. Well yesterday I turned on the car, no problems. But then when I hit the ac button the compressor engages and you hear this loud and i mean LOOOOUDDDDDD squeal/skreetch!!!. I immediately turned off the ac button. Sound went away. Turned it on again and it squealed again. I decided to drive around the block to see if it would stop. When you first turn on the ac button it squeals for about 3-5 seconds and goes away. I drove around and it would do it again this time 2-3 seconds and go away. It did it continuously. Also a little hesitate from the engine. I went back in the garage inspected the belt (bought it at advance auto parts) it seemed fine. My question is is the compressor going, pulleys, or belt? I did put WD40 on the ac compressor and the squeal went away. This morning the noise was back. PLEASE HELP!!!
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Old 04-27-2012, 02:13 PM   #2
ManualOverAuto
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Quote:
Originally Posted by Ansong
So I just got ac in my car again and bought a new belt and recharge the ac. First few days no problems. The past few days the temp dropped and I haven't used the ac. Well yesterday I turned on the car, no problems. But then when I hit the ac button the compressor engages and you hear this loud and i mean LOOOOUDDDDDD squeal/skreetch!!!. I immediately turned off the ac button. Sound went away. Turned it on again and it squealed again. I decided to drive around the block to see if it would stop. When you first turn on the ac button it squeals for about 3-5 seconds and goes away. I drove around and it would do it again this time 2-3 seconds and go away. It did it continuously. Also a little hesitate from the engine. I went back in the garage inspected the belt (bought it at advance auto parts) it seemed fine. My question is is the compressor going, pulleys, or belt? I did put WD40 on the ac compressor and the squeal went away. This morning the noise was back. PLEASE HELP!!!
What is the belt brand? I know you said it's from auto zone, but specifically what manufacturer.

I've heard that anything other than the OEM accessory belts will squeak. This means any from the oil change places, or auto zone, ect. This is why I bought all oem ones when I had mine replaced.

Not sure how true that is for Subaru's since I went with OEM and mine have ZERO squeak. But my friend got his accessory belts done at a lube center on his G35 and they squeak on start-up frequently.
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Old 04-27-2012, 02:51 PM   #3
Ansong
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Quote:
Originally Posted by ManualOverAuto View Post
What is the belt brand? I know you said it's from auto zone, but specifically what manufacturer.

I've heard that anything other than the OEM accessory belts will squeak. This means any from the oil change places, or auto zone, ect. This is why I bought all oem ones when I had mine replaced.

Not sure how true that is for Subaru's since I went with OEM and mine have ZERO squeak. But my friend got his accessory belts done at a lube center on his G35 and they squeak on start-up frequently.

I believe it was this one. Drive-Rite V-Ribbed Belt. I'm going to run to the mechanic after work and see if it's the belt. I do have another compressor if anything. Just a bummer that it started squealing and embarassing when I start it and everyone in the neighbor comes out to see it lol
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Old 04-27-2012, 03:07 PM   #4
Ansong
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But it only squeals when I engage the ac. If I turn on the car on without the ac button engaged it's fine. So as I engage it SQQQQQUUUUEEEEAAALLLLLL
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Old 04-27-2012, 03:15 PM   #5
ManualOverAuto
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Quote:
Originally Posted by Ansong
But it only squeals when I engage the ac. If I turn on the car on without the ac button engaged it's fine. So as I engage it SQQQQQUUUUEEEEAAALLLLLL
Same kind of situation happened to me with my old belts. They were dry rotted and they would squeak on start up for a good 10-20 seconds. They would also squeak if I turned the wheel to the wheel locks and tried turning at low speeds. Like in a parking lot.

Maybe if some other people chime in with OEM vs. aftermarket accessory belts someone can confirm my statements. Or say I'm completely wrong which wouldn't surprise me.

BUT, I'm pretty sure theres a good chance of squeak with aftermarket accessory belts, from what I've read and heard.
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Old 04-27-2012, 05:11 PM   #6
silverstreak02
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I got my belts from Autozone. But I got the Dayco belts that run around $50 each..advantage of having a discout because of work.And when you put them on they have to be TIIIIIIIIIGGGHHHHHHTTTTT or you'll have a squeal. My alternator/PS belt used to squeal something fierce before I replaced it because it was just old and had lost some tension.
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Old 04-27-2012, 10:49 PM   #7
Ansong
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Here's an update. Went home and decided to check the belt. I tightened it again. Problem solved! Easy and free....thank God
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Old 04-27-2012, 11:21 PM   #8
AliBenn
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thank god in FL summer humidity!!!!!
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Old 04-28-2012, 12:24 AM   #9
ManualOverAuto
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Quote:
Originally Posted by Ansong
Here's an update. Went home and decided to check the belt. I tightened it again. Problem solved! Easy and free....thank God
That's good. Maybe I was wrong about the belts, who knows.

I do know that my friends g35 squeals a little and he has aftermarket accessory belts. I know I read somewhere that aftermarket ones COULD squeal on Subaru's, and that's why I made sure OEM went in for replacements.

But you fixed your problem and that's all that matters.
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Old 04-28-2012, 07:05 AM   #10
Ansong
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2004 STI
WRB

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Quote:
Originally Posted by ManualOverAuto View Post
That's good. Maybe I was wrong about the belts, who knows.

I do know that my friends g35 squeals a little and he has aftermarket accessory belts. I know I read somewhere that aftermarket ones COULD squeal on Subaru's, and that's why I made sure OEM went in for replacements.

But you fixed your problem and that's all that matters.

Yeah thank God and i really appreciate your help +1
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Old 04-28-2012, 10:35 AM   #11
silverstreak02
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Quote:
Originally Posted by ManualOverAuto View Post
That's good. Maybe I was wrong about the belts, who knows.

I do know that my friends g35 squeals a little and he has aftermarket accessory belts. I know I read somewhere that aftermarket ones COULD squeal on Subaru's, and that's why I made sure OEM went in for replacements.

But you fixed your problem and that's all that matters.


You're right to question the integrity of aftermarket belts. They're not built specifically for the car you have, they're just based on size alone. So while a 42" belt might "fit" cars a, b, and c, car B may require 41.785 or something stupid size-wise. Thus you have to overtighen or stretch a belt. Factory belts are always nice, and typically don't have the branding all over them so people can clearly see you're a cheapo like me when it comes to replacing belts
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Old 05-09-2012, 06:24 PM   #12
microsnook
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My belts just blew and I was looking for a DIY on how to replace them?

Im searching now
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Old 05-09-2012, 07:36 PM   #13
silverstreak02
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This is a GREAT reference guide. It's on page 43 btw,

http://ken-gilbert.com/wrx/mans/2%20...C%20ENGINE.PDF
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Old 05-09-2012, 08:44 PM   #14
microsnook
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Thanks Ill take a look. I found another guide and it showed me the way

Still squeaks when I put on the AC, but I'm gonna wait a few days and see if it still does it
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