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07 c280 whining like a *****

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Old Sep 16, 2024 | 07:46 AM
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07 c280 whining like a *****

So My ac went hot and it was clear I have an extreme freon leak. At the same time my car started whining so I parked it and did an ac delete with the duralast 910 k6 belt, however after the ac delete she is still whining! Anyone have any insight?
Im not anoe to upload a vidro but reach out and ill be happy to send one to you
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Old Sep 16, 2024 | 09:29 AM
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Hey C2804maticno, it sounds like you've stumbled upon a classic case of belt or pulley noise. Since you’ve already deleted the AC and are using a bypass belt, the whining may be coming from one of the remaining pulleys or from the tensioner itself, especially if it's not applying the right amount of pressure on the belt. Sometimes, when the AC compressor has issues, it can transfer stress onto adjacent components, leading to premature wear or failure, and now that the compressor is out of the picture, you might still hear residual noise from damaged pulleys or bearings. Iust keep in mind that without the AC compressor, the belt routing can lead to increased load on other parts, so I would definitely inspect the serpentine belt tensioner and idler pulleys for wear. Just remember, when it comes to cars, if they start whining, it usually means they want attention, not a favorite song! Good luck!
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Old Sep 16, 2024 | 02:25 PM
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Originally Posted by jimyj
Hey C2804maticno, it sounds like you've stumbled upon a classic case of belt or pulley noise. Since you’ve already deleted the AC and are using a bypass belt, the whining may be coming from one of the remaining pulleys or from the tensioner itself, especially if it's not applying the right amount of pressure on the belt. Sometimes, when the AC compressor has issues, it can transfer stress onto adjacent components, leading to premature wear or failure, and now that the compressor is out of the picture, you might still hear residual noise from damaged pulleys or bearings. Iust keep in mind that without the AC compressor, the belt routing can lead to increased load on other parts, so I would definitely inspect the serpentine belt tensioner and idler pulleys for wear. Just remember, when it comes to cars, if they start whining, it usually means they want attention, not a favorite song! Good luck!

I appreciate the input! Yeah I'm thinking it's another pulley im just having trouble identifying because they all seem to be intact and the belt runs smooth. I'm just lapper gasted because I thought for sure when I deleted the A.c the whining would stop. I've not driven since the ac went out or since the delete only just around the block to test it out. Power steering seems good and I'm not getting hot, also My alternator has been replaced last year. So I'm willing to bet it's one of my 2 idler pulleys.
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Old Jun 25, 2025 | 04:40 AM
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Edward james234's Avatar
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sffdgfgh
Great insight! That whining sound after deleting the AC and running a bypass belt is a classic sign that something like the tensioner or pulleys isn’t quite happy. It’s kind of like using Emoji Kitchen—when you remove or remix standard emojis into new combos, things can get a little unpredictable if the elements don’t mesh well. Same with your belt system—removing the AC changes the balance, and if the tensioner or idler pulleys aren’t adjusted properly, you end up with a “combo” that makes noise instead of smooth performance. Definitely worth checking those parts before it gets worse.
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