- #6 of 11
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H3 Bad Differential
by gloriag
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Sep 15, 2009 (7:11 am)
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I was driving the H3 (2007) going about 55mph when the vehicle jerked, slowed down and started smoking. I pulled over and had the vehicle towed to a shop. The owner told me the differential fluid came out, which was evident by all the fluid on the side of the vehicle. The back end was locked up. I got an estimate of $2,600.00. My husband (my hero) had the vehicle towed to the Hummer dealership and was told that the warranty would cover the work. OMG(for you car guys, that's OH MY GOD!) Can't believe it. Anyone else having this kind of problem??
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- #7 of 11
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Re: H3 Bad Differential [gloriag]
by paint562
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Oct 16, 2009 (8:22 am)
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Replying to: gloriag (Sep 15, 2009 7:11 am)
My wife was driving about 55mph also when the car seemed to lock up. It immediately slowed to 10 mph and when it slowed it created like a jerking feel to it. Then when she tried to take off she could only go about 10mph and the car would jerk. I took it to a mechanic and he checked all the fluids and the transfer case as well as any other mechanical problems that might cause this and he found nothing. The only thing he could find was a broken motor mount. Could this possible be the cause. Also when the car slows the ABS light comes on. I do not know if it is coming on because of the problem or it is the actual problem. Any advice would be appreciated.
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- #8 of 11
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Re: H3 Bad Differential [paint562]
by dmathews3
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Oct 16, 2009 (10:06 am)
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Replying to: paint562 (Oct 16, 2009 8:22 am)
Why not take it to the people who should know how/what to fix, the Hummer dealer. I get a kick out of those who want their own mechanic to fix what for the most part knows nothing about and just guesses. My sister took my moms car to her great mechanic because the power seat no longer worked. Guy said she needed a new module at almost $600 plus install. Mom refused to pay that much as the seat was set for her and she was 85 years old and didn't care. Well while she was gone this past summer for a couple months I took it to the Caddy dealer who looked at it and said we have seen this problem many times with that year (97) and said a wire was rubbing on the track till it broke in half and blew the fuse. $42 later I was back on the road. So let the people who look at them all day everyday have a shot at it. It could be cheaper in the long run.
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- #9 of 11
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the idiot mechanic
by okko1
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Oct 21, 2009 (7:37 pm)
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next time take it to your dentist 
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- #10 of 11
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Our 08 H3 Alpha Transfer cases and front diffs
by skrat51
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Nov 08, 2009 (10:56 pm)
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Our 08 H3 Alpha has totally destroied two front diffs and two transfer cases in less than 50,000 kms (30,000 miles) this is bad enough but when it takes over a month each time its depressing.
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- #11 of 11
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Re: Our 08 H3 Alpha Transfer cases and front diffs [skrat51]
by tidester HOST
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Nov 08, 2009 (11:05 pm)
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Replying to: skrat51 (Nov 08, 2009 10:56 pm)
Ouch! Just curious - were you doing any serious off road driving?
tidester, host
SUVs and Smart Shopper
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