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Hummer H2

710 messages,  Last post on May 20, 2009 at 5:34 AM

You are in the Hummer Forum. Your Hosts are steve_ & tidester

What is this discussion about? AM General Hummer, HUMMER H2, HUMMER H2 SUT, SUV


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#658 of 710
Ticking noise behind the dashboard whe the weather get cold by redhummer
Jan 15, 2006 (10:58 pm)
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I have a 2003 hummer h2 and I have a ticking noise behind the dash board on the drivers side left of the steering wheel. the noise level varies. The dealer has not been able to fix this noise. I have had the car in the shop no less than 10 times over past two and a half years. The funny thing about this noise is that is is not constant and only occurs when the temperature is 50 or below. I rarely here the noise when the temperature is above 55 degrees. It sounds like something is ticking behind the dash board. Has anyone had a problem like this and determined what the problem was.
#659 of 710
Re: Ticking noise behind the dashboard whe the weather get cold [redhummer] by mac24
Jan 16, 2006 (7:06 am)
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Replying to: redhummer (Jan 15, 2006 10:58 pm)

I don't have the answer, but I'll take a guess if you like.
 
With temps below 50ºF you probably have the heater on. It could be that a plastic component, possibly part of the HVAC ducting, is not fully connected to its mating component. As it heats and expands it creates the ticking noise, just as the exhaust does sometimes. It may also be that the mating component is cooled by incoming outside air, thus keeping the process going.
 
It's a long shot, but I have actually come across something similar on a different vehicle. Dashboard noises are notoriously hard to both trace and eliminate.
#660 of 710
Re: Ticking noise behind the dashboard whe the weather get cold [mac24] by redhummer
Jan 16, 2006 (10:24 am)
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Replying to: mac24 (Jan 16, 2006 7:06 am)

Thank you for your quick response. I will mention this to the dealer. The problem is that the noise occurs most often when I first get in the truck before the heater has a chance to generate heat in the vehicle.
#661 of 710
certified pre-owned by steve_ HOST
Jan 24, 2006 (3:41 pm)
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"If you long for a Hummer of your own, for example the H2 (pictured), but just don't have that much extra cash on hand, the new Hummer Certified Pre-Owned program may be for you."
 
Hummer Initiates Pre-Owned Program (Inside Line)
 

Steve, Host
#662 of 710
THANK YOU H2...Saved my life!!! by jb2inpa
Feb 17, 2006 (7:01 pm)
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I have to say, I always hear bad press about H2, gas mileage, too big, etc. This week, my H2 rolled over twice while I was avoiding an accident. I hit a snow bank, and it grabbed my front passenger wheel and stopped my Hummer dead in it's tracks, causing it to spin on the ice and then roll. I was avoiding an oncoming car in my lane, and all this caused my vehicle to roll over twice. As I was rolling, I could feel the impact as it hit the ground each time, and was thinking since I am in this vehicle, which is like a vault, I better survive. When I came to a stop(upside down), I was still 100% secure in my seat belt. I had to kick out a window to climb out, but amazingly survived with just a few scratches. So for all those who think the H2 is not a great vehicle. I have to say, having owned too many cars to count including Mercedes and Rolls Royce, not only was the H2 comfortable, but safety is by far it's best feature.
#664 of 710
Noise under my 2003 Hummer H2 by highrollah2
Mar 17, 2006 (10:27 pm)
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I have a 2003 HUMMER H2 and I really don't drive it much...I have right at 37,000 miles on it and just a few weeks ago I notice that I have a rattle coming from the rear under section of my H2...However I only hear the rattle when accelerating and the H2 only does it after it has reached a warm temperture. I think it may be in the exhaust but I'm just not sure. Have anyone had a problem like this with a 2003 Hummer H2????? The noise is really starting to bother me and it seems to be getting louder each time I drive the H2......
#665 of 710
Re: Noise under my 2003 Hummer H2 [highrollah2] by mac24
Mar 18, 2006 (6:40 am)
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Replying to: highrollah2 (Mar 17, 2006 10:27 pm)

From what you say, it is likely to be the exhaust. The exhaust is flexibly mounted, to allow it to move with the engine as it twists under torque loading and unloading. You could have a soft or broken mount. You could also have a heat shield starting to break it's welds. Finally, you might have an internal baffle that's starting to break away inside the muffler. The first two can be checked by getting underneath to inspect the system and shake it around. A vibrating baffle is best fixed by changing the muffler.
#666 of 710
Re: Noise under my 2003 Hummer H2 [mac24] by highrollah2
Mar 25, 2006 (11:02 am)
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Replying to: mac24 (Mar 18, 2006 6:40 am)

mac24 you are truely correct. I had the exhaust system changed out a few days ago and the problem is no longer there. I had a broken mount and the baffle inside the muffler had also broken lose. I truely thank you for your time and your response to the problems I was having. By the way, I went with a FlowMaster system that was designed for the Hummer H2, thanks again and take care.
#667 of 710
Re: Noise under my 2003 Hummer H2 [highrollah2] by mac24
Mar 25, 2006 (12:09 pm)
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Replying to: highrollah2 (Mar 25, 2006 11:02 am)

Glad you got the problem solved.

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