Ok here the deal. This weekend i used my H3 to pull out a small brush from in front of the house. I had it in 4 low and pulled the roots system out of the ground. No problems,easy task. When i put the shifter into park the tranny make a grinding noise simular to that of a manual tranny with a partially engaged clutch. only does it in 4 low. other than that everything seems fine. Any clues?

 

When switching your transfer, are you in Park or Nuetral?

 

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.

 

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.

 

"If you can't find em, grind em" type of noise?

 

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.

 

You got it.

 

did that, no change. Dealer is comming here to get it this afternoon and take it back to check it out.

 

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

 

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)