4 High Lock Won't Disengage!!
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4 High Lock Won't Disengage!! - 6/11/2007 7:50:07 AM
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HumveeH3
Posts: 3
Joined: 6/11/2007
Status: offline
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How's it going? Long time reading, first time poster. This is the problem I'm having. My H3 for some reason today decided to go into 4 High Lock on it's own while I was trying to park. (I suppose the lack of off roading finally fed her up!) I pressed the "All Time 4x4" button and it lit up but I decided to drive out of the parking spot and see if the H3 was ok. This is when I noticed that even though the "All Time 4x4" button was on, the H3 was actually still in 4 High Lock. Called the dealer and the tech advised to drive it in reverse for 20 ft and then see if she's ok. Did this and it worked, but I wasn't sure that fixed the problem so I put her back into "4 High Lock" and drove a bit then back to "All Time 4x4" and again still in 4 High Lock. She's scheduled to be looked at but I was wanting to know if any more experienced "Hummer" owners have experienced this and what the problem was.
Appreciate any responses.
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RE: 4 High Lock Won't Disengage!! - 6/11/2007 8:03:46 AM
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D VADER
Posts: 1229
Joined: 5/21/2007
Status: offline
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Mine jumped to the second position over the weekend. I don't think so but I may have accidently bumped it. Anyway I switched it back with no problems. I didn't see the light on but noticed my tires were scrubbing, a sign of a locked differential.
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2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio
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RE: 4 High Lock Won't Disengage!! - 6/11/2007 8:42:29 AM
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ZYNE
Posts: 2453
Joined: 10/9/2006
From: Cincinnati, OH
Status: offline
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Didn't someone else here have a similar issue and it turned out to be the tc motor needing to be replaced?
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-03 HUMMER H2, Birch White. 35" BAJA MTZ, AVS Window Vent shades, Sirius, rear DVD, billet gas door, tail light guards, IPCW smoked cab lights, Sylvania SilverStar Ultra's, SMA Brushguard, etc.
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RE: 4 High Lock Won't Disengage!! - 6/11/2007 11:13:10 AM
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mliebs8
Posts: 30
Joined: 5/13/2007
Status: offline
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I'm curious as to what tires scrubbing means.
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RE: 4 High Lock Won't Disengage!! - 6/11/2007 12:21:11 PM
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HumveeH3
Posts: 3
Joined: 6/11/2007
Status: offline
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D VADER, I thought I might of accidentally hit the button also but both my hands were on the steering wheel since I was making a turn into the parking row.
As for the TC motor needing to be replaced, thank goodness for warranty!!
I appreciate the replies.
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RE: 4 High Lock Won't Disengage!! - 6/11/2007 3:17:04 PM
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Hummer Guy
Posts: 652
Joined: 2/9/2007
From: Home of the Hummer
Status: offline
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"All Time 4x4" button? Am I way to paranoid about trolls? If its true: Take it to the dealer, its clearly a malfunction that you wont be able to fix on your own.
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-Brian
http://www.hummerguy.net
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RE: 4 High Lock Won't Disengage!! - 6/15/2007 8:25:50 AM
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HumveeH3
Posts: 3
Joined: 6/11/2007
Status: offline
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Hummer Guy, I appreciate the reply. As for being paranoid about trolls, No I'm not. As you may have read in the my first post, I'm new to the forums and was asking for those who have owned an H3 longer than I have if they have experienced this issue. The "All Time 4x4 button", I was referring to the button that is active during regular driving. I appologize for not reading the manual for the actual name/label of the button but it looks like everyone else who replied knew what I was talking about. I also mentioned that the H3 was scheduled for maintenance so clearly I knew I couldn't resolve this issue on my own. I appologize in advance if I read your reply as a "Negative" response to my lack of knowledge of the 4x4 system but I've come to realize on any forum that there are some folks that like to degrade those who are just asking for what "you" may consider as "Common Sense" information.
As to the condition of the H3, the tech checked it out and all was good. Apparently, 4x4's need to be placed in reverse after switching back to "Normal" driving and driven 20ft. Is this true? I don't know, but maybe you, "Hummer Guy", can answer this for me.
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