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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > General H2 Discussion

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  #1  
Old 06-30-2008, 09:48 PM
HSTONKA HSTONKA is offline
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Default Re: 4wheel drive switches...stays in Neutral?

battery has never been replaced, '05 SUT with 55k on it......
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Old 07-01-2008, 03:11 PM
pdsq99f4 pdsq99f4 is offline
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Default Re: 4wheel drive switches...stays in Neutral?

You may want to have the battery checked out to make sure it is up to par. You could be having a low voltage situation to the tccm when first starting it up causing it to do weird things.
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Old 05-09-2010, 06:57 AM
BUMMER BUMMER is offline
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Default Re: 4wheel drive switches...stays in Neutral?

I would like to revive this thread. Ive been experiencing the same problem. My TC tends to go from 4HI to The RED NEUTRAL Light on it's own. I would like to resolve this myself before taking it to the dealer. From the info I have gathered these could be some of the fixes but would like to hear from others who have resolved this

1- Replace TCCM Actuator?
2- Replace relay fuse?
3- Replace Encoder motor?
4- Go through all TC drives 25 times?

Last edited by BUMMER : 05-09-2010 at 07:03 AM.
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  #4  
Old 05-09-2010, 12:45 PM
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HummerJim HummerJim is offline
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Default Re: 4wheel drive switches...stays in Neutral?

I can't find the old thread on this but I remember something about going from 4Hi into 4 Lo and 4 Hi lock several times to see if it clears things up.
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Old 05-09-2010, 02:57 PM
BUMMER BUMMER is offline
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Default Re: 4wheel drive switches...stays in Neutral?

Jim, I believe that would be similar to what Ive read by going through 4HI and 4LO 25 times. I don't see how that would work but I will give it a try. The funny thing is when the TC goes into Neutral, the truck seems to drive smoother however my gas mileage only averages 8.9 at best!!
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Old 05-09-2010, 05:25 PM
Cesardajr Cesardajr is offline
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Question Re: 4wheel drive switches...stays in Neutral?

i am having the same issue.
i thought maybe since i have not change my transfer case fluid (52K miles) it may be a warning to change it?
if you guys find a fix please post it.
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Old 05-09-2010, 05:39 PM
BUMMER BUMMER is offline
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Default Re: 4wheel drive switches...stays in Neutral?

Cesarjajr, does your light stay in Neutral or does it go back and forth to 4HI like mine? Has your gas mileage changed?
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