Laredo 2019- whining sound (help) - JeepForum.com
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post #1 of 7 Old 06-16-2021, 05:35 AM Thread Starter
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Laredo 2019- whining sound (help)

I own a grand cherokee laredo, its a v6. Recently, i noticed a whining sound while accelerating (rpm between 3500 and 4500). This whining sound resembles the whine of a supercharger??? im not gonna lie it sounds a bit nice but im pretty sure it shouldnt sound like that

Does anyone have an idea about the cause of this sound?

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post #2 of 7 Old 06-16-2021, 07:32 AM
ColdCase
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Do you see any oil leaks? Is it an alternator type whine? Less than 36 months in service it would still be covered by factory warranty.
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I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #3 of 7 Old 06-16-2021, 03:28 PM Thread Starter
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Originally Posted by ColdCase View Post
Do you see any oil leaks? Is it an alternator type whine? Less than 36 months in service it would still be covered by factory warranty.
Looked under the car and i didn't find any oil leaks. I dont think its the alternator, sounds different. I think my best option is taking it to the dealer and let them check it up. Will update after taking it.

Thanks
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post #4 of 7 Old 06-16-2021, 07:50 PM
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my quadra trac does the same sound when accelerating harder while turning or more slippery roads. Try accelerating normally on a dry and neat road, in straight line. If you don't hear it, probably the quadra-trac doing it's job when you hear it. It's quite subtle on my side.

My friend that got the same jeep as mine but a 2018 was worried too with his until I went with him and told him it's normal.
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post #5 of 7 Old 06-17-2021, 05:43 PM Thread Starter
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Originally Posted by diverscale View Post
my quadra trac does the same sound when accelerating harder while turning or more slippery roads. Try accelerating normally on a dry and neat road, in straight line. If you don't hear it, probably the quadra-trac doing it's job when you hear it. It's quite subtle on my side.

My friend that got the same jeep as mine but a 2018 was worried too with his until I went with him and told him it's normal.
my car is 4x2
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post #6 of 7 Old 06-17-2021, 09:58 PM
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Does this happen in a specific gear or is it purely RPM-related? It could be a bad belt or tensioner but these things are hard to diagnose online. Do you feel any vibrations associated with the noise?
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post #7 of 7 Old 07-23-2021, 07:08 PM
jmbruen
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Same problem with my 2012 Grand Cherokee. It definitely sounds like it's coming from the transfer case. I hear it mostly after 40mph. Anyone else experiencing this??
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