Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

Whining sound

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Old Jul 16, 2023 | 08:51 AM
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Default Whining sound

Hey folks, last week I went to the beach and I had to put 4wheel lock down because of the thick sand . But when I drive I hear a whiny noise coming from under. It only happen when I put it in 4lock down and only when like I press on the gas and moves . What can be the cause of this? And how can I make that whinny noise goes away?
 
Old Jul 17, 2023 | 01:26 PM
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Originally Posted by NFS
Hey folks, last week I went to the beach and I had to put 4wheel lock down because of the thick sand . But when I drive I hear a whiny noise coming from under. It only happen when I put it in 4lock down and only when like I press on the gas and moves . What can be the cause of this? And how can I make that whinny noise goes away?

anyone?
 
Old Jul 17, 2023 | 02:25 PM
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Low gear ratio! Lo range does in fact whine.

You do not need Lo for sand. Sand requires lower tire pressure (I run like 12-14PSI Front and 11PSI rear) and a bit of momentum. If you do not have access to getting quickly aired back up for street travel, at least take it down the mid 20s as it will help a bunch.
 
Old Jul 17, 2023 | 04:36 PM
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Originally Posted by Doc Olds
Low gear ratio! Lo range does in fact whine.

You do not need Lo for sand. Sand requires lower tire pressure (I run like 12-14PSI Front and 11PSI rear) and a bit of momentum. If you do not have access to getting quickly aired back up for street travel, at least take it down the mid 20s as it will help a bunch.
okay so I am not crazy l. And the beaches here are like 15 inch sand. When u go on it using other gear options I get stuck so I have to put it at lo for me to move freely and I don’t like plan for it to put lower pressure all the sudden I be like okay let’s go to the beach and then I put it at that
 
Old Jul 18, 2023 | 08:34 AM
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Put it in 4Hi Lock, turn OFF the Traction Control, lower tire PSI and let it rip.

The dunes here are a few hundred feet deep. The old 07 near new.
 

Last edited by Doc Olds; Jul 18, 2023 at 08:36 AM.
Old Jul 18, 2023 | 09:09 AM
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Originally Posted by Doc Olds
Put it in 4Hi Lock, turn OFF the Traction Control, lower tire PSI and let it rip.

The dunes here are a few hundred feet deep. The old 07 near new.

oooo I should def try that thank you
 
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