H3 4 wheel drive problem - Hummer Forums - Enthusiast Forum for Hummer Owners


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Old 02-27-2011, 08:50 PM
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Unhappy H3 4 wheel drive problem

2006 H3. The 4 wheel drive status indicator shows all wheel drive, but the truck is in 4 wheel hi locked. Drove in reverse and it came out momentarily, but went back to 4 wheel locked after a minute or so.

Additionally can't get the drive train into towing neutral. I checked this while troubleshooting the all wheel drive problem above.

The truck will go into 4 wheel low lock and come out of it, but I can't get it to stay in normal all wheel drive.

I haven't contacted the dealer, as I generally don't trust them and this kind of thing seems like a costly repair.

Any Ideas?
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Old 02-27-2011, 10:56 PM
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Sounds like either your "plastic" shift fork is going or the t-case shift actuator. I wheeled with a buddy who had this issue after wheeling and we knocked on the shift actuator a few times with the handle of a big screwdriver and it shifted back into 4hi. He did have to have the actuator replaced but he was under warranty then. If it is the actuator, it is a simple part swap, don't pay a dealer just order the part online and install it yourself.

If it is the shift fork, I think you are SOL and will have to have a Dealer or trans shop replace it with the stronger metal fork. I have heard of GM picking up aome or all of the labor if you bought the part. Might want to give it a try??
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4wheel, actuator, blue, drive, h2, h3, hummer, issues, problems, replace, shift, stay, time, trouble, wheel, wheeling

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