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Whining noise from engine compartment

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Old 10-30-2019, 05:05 PM
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blkceaser
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Whining noise from engine compartment

I know I should know this but I wanted to get a second opinion. So when I start my car, and while its running idle or while I'm driving, my car is making a whining noise that should like it may be coming from one of the belts or something. Can someone tell me what this could possible be? I was thinking a misaligned pulley or bad belt
Old 10-30-2019, 08:18 PM
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ILM-NC G37S
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The whine could be a bearing going bad on one of the idler pulleys, the tensioner pulley, accessory pulleys, etc. Best test would be to remove the belt and check how each pulley spins. Also check the alternator, power steering, and AC compressor. Any binding, roughness, or grinding sensation indicates bearing failure.

Assuming the noise is emanating from the belt area... Are you sure the noise is belt related?

Just my 10¢...

Last edited by ILM-NC G37S; 10-30-2019 at 09:38 PM.
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Old 10-31-2019, 12:53 AM
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slartibartfast
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Stop immediately and get your wife out of the engine bay. The whine will turn to a roar but at least it won't be under the hood.
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Old 10-31-2019, 04:05 AM
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UCLAG37
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If you determine your wife isn't the source of the whine, try the spray bottle test.


How many miles on your vehicle? My G started making chirping and whining noises at about 60K. Noises went away after I replaced the belt, tensioner and pulleys.

UCLAg37
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Old 11-02-2019, 09:53 PM
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Surfnazi
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Run a bar of soap over the belt as it runs, if whine goes away it's the belt and tensioner pulley...BUT DONT SPRAY BELT LUBE OR ANY LUBE ONTO BELT TO STOP WHINE it will cause more problems
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Old 11-08-2019, 10:16 AM
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blkceaser
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I'm at 98k
Old 11-08-2019, 10:20 AM
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blkceaser
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I'm assuming its a belt issue or like you said a bearing issue. I'll to the water test this evening to see if it stops and proceed accordingly
Old 11-08-2019, 10:27 AM
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blkceaser
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LMAO, never thought about removing the wife....now that I think of it.... the whining didn't start until we moved into this new house. I'll definatly take a look into that isse bro thanks LOL
Old 11-12-2019, 09:06 AM
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Surfnazi
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Could be bad ground wire and its playing through the speakers and would get louder as rpms go up. Do you have an aftermarket sub or speakers installed?
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