# Whining sounds diagnosis

**URL:** <https://community.cartalk.com/t/whining-sounds-diagnosis/189794>\
**Category:** Maintenance/Repairs\
**Created:** [March 27, 2023, 9:47am UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794 "2023-03-27T09:47:02Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![bigboss\_3zoz](https://avatars.discourse-cdn.com/v4/letter/b/d07c76/32.png) [@bigboss\_3zoz](https://community.cartalk.com/u/bigboss_3zoz)\
**Post date:** [March 27, 2023, 9:47am UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/1 "2023-03-27T09:47:02Z")

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I just replaced the radiator for my car, and when I received the car it had new strange whining sound.  
The sound is variable and shows up even when the car is still. When press the puddle it increases its pitch

What could be wrong?

The car is GMC terrain 2013

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [March 27, 2023, 10:33am UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/2 "2023-03-27T10:33:12Z")

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Remove the serpentine belt, turn each pulley by hand. My **guess** is a bad bearing.

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**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\
**Post date:** [March 27, 2023, 12:38pm UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/3 "2023-03-27T12:38:45Z")

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> [@bigboss\_3zoz](#):
>
> I just replaced the radiator for my car, and when I received the car it had new strange whining sound.

Did you ask the place that did the work about the noise ?

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**Author:** ![bigboss\_3zoz](https://avatars.discourse-cdn.com/v4/letter/b/d07c76/32.png) [@bigboss\_3zoz](https://community.cartalk.com/u/bigboss_3zoz)\
**Post date:** [March 27, 2023, 1:09pm UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/4 "2023-03-27T13:09:25Z")

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They gave me some clear nonsense

Referring to old issue for radiator water getting mixed with gearbox oil

This was very long time ago and did an overhaul for it. Also there is no issues with gear shifting, so it didn’t make sense to me.

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**Author:** ![bigboss\_3zoz](https://avatars.discourse-cdn.com/v4/letter/b/d07c76/32.png) [@bigboss\_3zoz](https://community.cartalk.com/u/bigboss_3zoz)\
**Post date:** [March 27, 2023, 1:42pm UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/5 "2023-03-27T13:42:38Z")

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I will give it a look

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**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [March 27, 2023, 2:46pm UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/6 "2023-03-27T14:46:08Z")

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> [@bigboss\_3zoz](#):
>
> Referring to old issue for radiator water getting mixed with gearbox oil

Does this have transmission fluid cooler built into radiator?  
Could be transmission damaged by coolant in oil.

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**Author:** ![bigboss\_3zoz](https://avatars.discourse-cdn.com/v4/letter/b/d07c76/32.png) [@bigboss\_3zoz](https://community.cartalk.com/u/bigboss_3zoz)\
**Post date:** [March 27, 2023, 3:38pm UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/7 "2023-03-27T15:38:26Z")

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That would reflect clearly in performance  
You will see some kind of delayed shifting or sudden shifting.  
But gearbox performance is seamless

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**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [March 27, 2023, 6:45pm UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/8 "2023-03-27T18:45:46Z")

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Have you inspected trans fluid condition?

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**Author:** ![bigboss\_3zoz](https://avatars.discourse-cdn.com/v4/letter/b/d07c76/32.png) [@bigboss\_3zoz](https://community.cartalk.com/u/bigboss_3zoz)\
**Post date:** [March 28, 2023, 4:40am UTC](https://community.cartalk.com/t/whining-sounds-diagnosis/189794/9 "2023-03-28T04:40:32Z")

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All fluid are in good condition and levels