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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > Technical Discussion and Customizing your H3

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  #1  
Old 07-26-2006, 02:20 AM
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Default Maybe my 1st problem

When stopped and shifting back and forth from neutral to drive, my truck shakes and makes a loud clunk. Doesn't sound like anything I'm used to hearing, I did a search and came up empty, anyone?
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  #2  
Old 07-26-2006, 02:56 AM
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Default Re: Maybe my 1st problem

My first quess would be bad Ujoints. Is it a hollow clank or solid?
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  #3  
Old 07-26-2006, 03:00 AM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by deserth3
My first quess would be bad Ujoints. Is it a hollow clank or solid?
Solid, sounds like the engine is falling out
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Old 07-26-2006, 03:06 AM
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Default Re: Maybe my 1st problem

Probubly not Ujoints then. You'll have to wait for the experts.
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Old 07-26-2006, 03:10 AM
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Default Re: Maybe my 1st problem

check your motor mounts and drive-lines ( U-Joints ) , there should only be a light tink noise from slack in driveline . sounds like you may have something going on under there thats not normal i hope its not too major , hang in there hummer will get it fixed . you might crawl under and have wife or someone shift for you maybe you could isolate the area the noise is coming from .

keep us posted and good luck
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  #6  
Old 07-26-2006, 03:13 AM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by deserth3
Probubly not Ujoints then. You'll have to wait for the experts.

he is right if the motor is falling out its not the U-joints hope its not that .
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  #7  
Old 07-26-2006, 03:19 AM
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Default Re: Maybe my 1st problem

I'll take it tomorrow, just was hoping not to get dicked around if could figure anything out myself. Whats the deal with a replacement car under warranty, do I have to wait a day b4 they'll give me one?
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Old 07-26-2006, 03:26 AM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by hmrlvr
I'll take it tomorrow, just was hoping not to get dicked around if could figure anything out myself. Whats the deal with a replacement car under warranty, do I have to wait a day b4 they'll give me one?

they should have a loaner for you as soon as you drop it off , there should not be any wait . you might call ahead and see that they do have loaners available and tell them your on the way and save you one . maybe you will get a green one , i had a white one sorry man i bet your stressin over this , i know i was .
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  #9  
Old 07-26-2006, 03:51 AM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by NEOCON1
they should have a loaner for you as soon as you drop it off , there should not be any wait . you might call ahead and see that they do have loaners available and tell them your on the way and save you one . maybe you will get a green one , i had a white one sorry man i bet your stressin over this , i know i was .
I was checkin out the last green one on the lot on Saturday, real nice
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Old 07-26-2006, 03:57 AM
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Default Re: Maybe my 1st problem

Loaner = a GM car. Won't be a Hummer in S. Cal. Good luck! Bummer to drive a sedan after having a Hummer.
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  #11  
Old 07-26-2006, 04:16 AM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by Hmmm3
Loaner = a GM car. Won't be a Hummer in S. Cal. Good luck! Bummer to drive a sedan after having a Hummer.


I'll just bring my 12 foot ladder in on my roof rack and see what they say when I try to cram it into a loaner sedan. I used to do that with my chevy truck so they would give me a truck . Unless of course the sedan is a caddy . Then no complaints
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Old 07-26-2006, 10:53 AM
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Default Re: Maybe my 1st problem

The noise could be caused by the clearance (lash) between some of the gears. It can be more pronounced in 4x4 systems due to more parts in the drivetrain.
However, the rough idle doesn't fit in, and may be a complete different problem.
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  #13  
Old 07-26-2006, 11:22 PM
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Default Re: Maybe my 1st problem

UPDATE.. all they said was "that doesn't sound good". In and out, 15 minutes with a brand new '07 CTS to drive. No complaints. Hope they find the problem soon though
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Old 07-26-2006, 11:41 PM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by NEOCON1
you might crawl under and have wife or someone shift for you

Sounds like "When Good Ideas Go Horribly Wrong"
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  #15  
Old 07-26-2006, 11:48 PM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by inkyblacks
Sounds like "When Good Ideas Go Horribly Wrong"

I don't know ... there's enough clearance under there. Just tell her to keep it under 30, and you should be okay
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  #16  
Old 07-27-2006, 12:21 AM
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Default Re: Maybe my 1st problem

A clunk? Motor Mounts or a Tranny Mount would be my guess

A Clink I would say U-Joints

Been on lots of rough wash board roads?

The low range puts lots of torque on the whole system.

I have had a t-case mount go in a Jeep ane the engine torque would cause the t-case to hit the cross member. Fixed that with a piece of wood and duct tape untill I got a polyethylene bushing.
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  #17  
Old 07-27-2006, 12:25 AM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by Desert Dan
A clunk? Motor Mounts or a Tranny Mount would be my guess

A Clink I would say U-Joints

Been on lots of rough wash board roads?

The low range puts lots of torque on the whole system.

I have had a t-case mount go in a Jeep ane the engine torque would cause the t-case to hit the cross member. Fixed that with a piece of wood and duct tape untill I got a polyethylene bushing.

Definatly alot of rough rocky stuff lately. The motor mounts looked ok but what do I know? I have faith
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Old 07-27-2006, 01:12 AM
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Default Re: Maybe my 1st problem

Let me through out a guess...low/reverse clutch support retainer
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  #19  
Old 07-27-2006, 02:15 AM
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Default Re: Maybe my 1st problem

Quote:
Originally Posted by f5fstop
Let me through out a guess...low/reverse clutch support retainer
Do you know something I should
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  #20  
Old 07-28-2006, 03:48 PM
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Default Re: Maybe my 1st problem

No call yet??? I kinda like the CTS with the tiptronic transmission though. Kinda sporty and very fast.
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