Grinding noise 4 whl low
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RE: Grinding noise 4 whl low - 5/27/2008 9:10:44 AM
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Gunz
Posts: 140
Joined: 11/12/2007
From: Havelock NC
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When switching your transfer, are you in Park or Nuetral?
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RE: Grinding noise 4 whl low - 5/27/2008 10:46:16 AM
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rhill20
Posts: 4549
Joined: 10/27/2007
From: Delaware, Ohio GO BUCKS!
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I have heard that sound on my old Jeep when I hadn't had it locked in for awhile, but not on the Hummer. 
Sorry I can't help more than that.
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RE: Grinding noise 4 whl low - 5/27/2008 11:00:16 AM
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IHNEVELS
Posts: 320
Joined: 9/19/2007
From: Baton Rouge La
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Neutral. It goes into all gears hi and low fine with no problems or noises durring operation. Only when in 4 low going to park does it do this. the sound is that of maybe 2 splined peices not meshing up.
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RE: Grinding noise 4 whl low - 5/27/2008 11:04:17 AM
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rhill20
Posts: 4549
Joined: 10/27/2007
From: Delaware, Ohio GO BUCKS!
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"If you can't find em, grind em" type of noise?
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RE: Grinding noise 4 whl low - 5/27/2008 11:11:38 AM
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Sewie
Posts: 238
Joined: 3/29/2006
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I get that all the time. Haven't gone through a t-case or tranny yet.  Try inching forward/back a little and then putting it in park.
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RE: Grinding noise 4 whl low - 5/27/2008 11:17:11 AM
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IHNEVELS
Posts: 320
Joined: 9/19/2007
From: Baton Rouge La
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You got it.
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RE: Grinding noise 4 whl low - 5/27/2008 11:19:04 AM
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IHNEVELS
Posts: 320
Joined: 9/19/2007
From: Baton Rouge La
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did that, no change. Dealer is comming here to get it this afternoon and take it back to check it out.
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RE: Grinding noise 4 whl low - 5/27/2008 11:49:23 AM
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Gunz
Posts: 140
Joined: 11/12/2007
From: Havelock NC
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The other week when my son was wheeling I thought I heard the same noise. But I definitely am not being a smart butt here. I noticed he still had the engine reving if you will so I had him stop the vehicle completly and wait actually about 2 seconds and put it in park and no problems. Again i am not saying you were not doing that I am saying it almost seemed to take a second to wind down so to speak? I know that makes no sense but it never made a sound afterwards. Good luck, Mike
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RE: Grinding noise 4 whl low - 5/27/2008 1:16:35 PM
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rhill20
Posts: 4549
Joined: 10/27/2007
From: Delaware, Ohio GO BUCKS!
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I agree Mike, it does almost sound like they are still spinning when trying to engage. May just have to wait a few seconds then try it. I always wait until the truck "feels" settled before I try and change the gears, even from Drive to Reverse. (lost a few tranny's in my younger years )
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RE: Grinding noise 4 whl low - 5/27/2008 1:47:58 PM
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IHNEVELS
Posts: 320
Joined: 9/19/2007
From: Baton Rouge La
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What i did the last time was with out moving i engaged 4 low shifted into rev./nut/dr then reversed the process stopping at each for several seconds then to park without moving an inch. thats what has me so puzzled.
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RE: Grinding noise 4 whl low - 5/27/2008 1:51:52 PM
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rhill20
Posts: 4549
Joined: 10/27/2007
From: Delaware, Ohio GO BUCKS!
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Hopefully they will be able to figure it out then. Maybe your pressure plate isn't engaging correctly
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