Hummer Forums by Elcova  
Forums - Home
Source Decals

Source Motors
Custom. Accessories.

H2 Accessories
H3 Accessories
Other Vehicles

H2 Source

H2 Member Photos
H2 Owners Map
H2 Classifieds
H2 Photo Gallery
SUT Photo Gallery
H2 Details

H2 Club

Chapters
Application

H3 Source

H3 Member Photos
H3 Classifieds
H3 Photo Gallery
H3 Owners Map
H3 Details
H3T Concept

H1 Source

H1 Member Photos
H1 Classifieds
H1 Photo Gallery
H1 Details

General Info

Hummer Dealers
Contact
Advertise

Sponsored Ads










 


Source Motors - custom. accessories.


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

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 06-23-2013, 07:40 PM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default knocking noise while drive

Hi guys

Ive notice a knocking noise , it comes from the floor underneath while drive , I was reading that may be the mounts for the exhaust are broken or a problem with the shaft .
It is intermittent , most common while passing around the 45-50 mpg range

I will check the exhaust
Please any advise how to check if there is a issue with the shaft before taking it to the dealer

Any other thing to check ?

Thank you all
Reply With Quote
  #2  
Old 06-23-2013, 10:21 PM
iwillnc's Avatar
iwillnc iwillnc is offline
Hummer Professional
 
Join Date: Jan 2011
Location: Clayton, NC
Posts: 370
iwillnc is on a distinguished road
Default Re: knocking noise while drive

Does it come about during High RPM?

Or over 50 mph it's constant?


I have a rattle in my passenger floorboard that sometimes sounds always above 4500 RPM.


If nothing else you can put the truck into neutral with the park brake engaged and try to shake the shafts.

In which direction does it sounds like it's coming from?
And your sure it's a knocking and not a clicking?
Reply With Quote
  #3  
Old 06-24-2013, 12:19 AM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while drive

Quote:
Originally Posted by iwillnc
Does it come about during High RPM?

Or over 50 mph it's constant?


I have a rattle in my passenger floorboard that sometimes sounds always above 4500 RPM.


If nothing else you can put the truck into neutral with the park brake engaged and try to shake the shafts.

In which direction does it sounds like it's coming from?
And your sure it's a knocking and not a clicking?

It is a knocking noise like bump,bump,bump ... as if something is knocking on the floor
it is intermittent around 45-50 mph but not always does it ...

I dont think it is related with stopping or accelerating , either with turning ...
Also I can feel the bumping in my foot ... The sequencing is around 3-4 bumps per second

I will try to do a shake test to the shaft

Thanks
Reply With Quote
  #4  
Old 06-24-2013, 12:46 AM
Easy Ed Easy Ed is offline
Hummer Authority
 
Join Date: Oct 2003
Posts: 1,118
Easy Ed is an unknown quantity at this point
Default Re: knocking noise while drive

Body Mounts Maybe ?

http://www.elcovaforums.com/forums/s...ad.php?t=40794

Ed
Reply With Quote
  #5  
Old 06-24-2013, 07:12 AM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while drive

HI Ed

I will check all the mounts , also the skid plate , I will post after the check
Reply With Quote
  #6  
Old 06-24-2013, 01:30 PM
HummerJim's Avatar
HummerJim HummerJim is offline
Hummer Authority
 
Join Date: Jun 2005
Location: Key Largo
Posts: 1,174
HummerJim is an unknown quantity at this point
Default Re: knocking noise while drive

Quote:
Originally Posted by Easy Ed

+1 several early posts when the H2 came out of knocking noises under the floorboard and warranty fixes with new body mounts. I think AM General had two or three bad batches of them.
Reply With Quote
  #7  
Old 06-24-2013, 07:45 PM
BUNNY15's Avatar
BUNNY15 BUNNY15 is offline
Hummer Veteran
 
Join Date: Aug 2011
Location: DFW
Posts: 105
BUNNY15 is on a distinguished road
Default Re: knocking noise while drive

I had the same issue and mine was the driver's side wheel hub...problem solved and haven't heard a peep since February.
__________________
BUNNY15 aka Tiffany

2003 H2, Moog Idler, Pitman, Up/Low BJ, In/Out TR, Fabtech 6in Lift, Yokohama Geolander M/T 40x15.50x20, Black XD Bombs 20x9, Bilstein 5100 Shocks, Yukon 5:13 gears f/r, Hypertech Max programmer, KC 851 HID's 35w, Pioneer DVD/NAV/TOUCHSC, 10" woofers, 6k Headlight HID's, White LED DRL (wired to run w/headlights on),Custom University of Texas gauges, Custom yellow paint. interior, Fuel pump/filter (Feb '13), Rebuilt 4L60E (April '13) & Rebuilt Transfer Case (Oct '14)
Reply With Quote
  #8  
Old 06-25-2013, 12:45 AM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while drive

Quote:
Originally Posted by BUNNY15
I had the same issue and mine was the driver's side wheel hub...problem solved and haven't heard a peep since February.
was your problem intermittent , does the bump feels every way on the floor or only on side with the bad hub
Thank you
Reply With Quote
  #9  
Old 06-26-2013, 10:14 PM
wasp1971's Avatar
wasp1971 wasp1971 is offline
Hummer Veteran
 
Join Date: Jan 2012
Location: Gulf Breeze, Florida
Posts: 39
wasp1971 is on a distinguished road
Default Re: knocking noise while drive

How in the heck can a body mount cause an intermittent knock? I would get under there and shake the crap out of everything possible. If you find something loose that's most likely the culprit. Good luck
Reply With Quote
  #10  
Old 06-27-2013, 04:28 PM
HummerMann's Avatar
HummerMann HummerMann is offline
Hummer Expert
 
Join Date: Jun 2008
Location: New York
Posts: 524
HummerMann is on a distinguished road
Default Re: knocking noise while drive

Yes, knocking, thumping, oil canning, bumping in the floorboard - there's lots of threads on this and bad or deteriorating body mounts if you search 2004 2005 technical. Search is your friend here.
__________________

Hummer, like nothing else
Reply With Quote
  #11  
Old 06-27-2013, 08:10 PM
BUNNY15's Avatar
BUNNY15 BUNNY15 is offline
Hummer Veteran
 
Join Date: Aug 2011
Location: DFW
Posts: 105
BUNNY15 is on a distinguished road
Default Re: knocking noise while drive

Quote:
Originally Posted by H2Miami
was your problem intermittent , does the bump feels every way on the floor or only on side with the bad hub
Thank you

I only felt it on the driver's side. Never had a passenger say they could feel it too. I only noticed it at speeds over 50. The easiest way to tell is to get that front end of the ground and shake that tire from side to side. If you get that wiggle wiggle wiggle then that's probably your problem. Apparently our H2' s are prone to hubs failing. Let us know if this happens to be your problem. I bought a brand new one from R A for less than $100.
__________________
BUNNY15 aka Tiffany

2003 H2, Moog Idler, Pitman, Up/Low BJ, In/Out TR, Fabtech 6in Lift, Yokohama Geolander M/T 40x15.50x20, Black XD Bombs 20x9, Bilstein 5100 Shocks, Yukon 5:13 gears f/r, Hypertech Max programmer, KC 851 HID's 35w, Pioneer DVD/NAV/TOUCHSC, 10" woofers, 6k Headlight HID's, White LED DRL (wired to run w/headlights on),Custom University of Texas gauges, Custom yellow paint. interior, Fuel pump/filter (Feb '13), Rebuilt 4L60E (April '13) & Rebuilt Transfer Case (Oct '14)
Reply With Quote
  #12  
Old 07-01-2013, 02:05 PM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while drive

Well . I checked all the mounts , the Skid plate , the exhaust and more underneath parts but nothing is loose .
Im checking the Hubs today .
In the positive side ... I took it to a small offroad road yesterday and it didn't gets any worse .
Reply With Quote
  #13  
Old 07-04-2013, 08:17 PM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while drive

HI every1

Ok I checked the two front wheel hubs ... they looks fine ... however while the driver side is steady with very little play ( not the Hub but the whole front end ) ..
The passenger side has some play , again not on the hub in fact when moving sound kind of the same bump noise I mentioned before
Is that play normal , any specific part to check .

Thank you all
Reply With Quote
  #14  
Old 07-21-2013, 07:57 AM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while drive

Just updating ... After trying in different mechanic shops to replace the diff mounts I decide to re-balance and rotate the tires to give a shot and guess what ..

The bumping/knocking noise is gone

OG I just save $900 Life is good
Reply With Quote
  #15  
Old 07-21-2013, 11:43 AM
jsbihn jsbihn is offline
Moderator
 
Join Date: Jan 2012
Posts: 728
jsbihn is on a distinguished road
Default Re: knocking noise while drive

So basically all you did was rotate and balance out the tires and the bump was gone???

If so way to go.
I know that when I diagnose patients, I always make sure to think "horses" first, not "zebras"... but given I would have never guess based on the info you gave it was that easy of a fix.
Good job....

PS even better for saving 900 bucks from the stealership
Reply With Quote
  #16  
Old 07-23-2013, 05:13 AM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while drive

Quote:
Originally Posted by jsbihn
So basically all you did was rotate and balance out the tires and the bump was gone???

If so way to go.
I know that when I diagnose patients, I always make sure to think "horses" first, not "zebras"... but given I would have never guess based on the info you gave it was that easy of a fix.
Good job....

PS even better for saving 900 bucks from the stealership

"horses" first, not "zebras" LOL

Well the real hero was the dealer guy , he told me to go and rotate the tires before doing anything else ,,, it took me a week to get the rotation cause I was sure it wouldn't do any good ... Fortunately I was so wrong
Reply With Quote
  #17  
Old 10-29-2013, 08:23 PM
H2Miami's Avatar
H2Miami H2Miami is offline
Hummer Veteran
 
Join Date: Jul 2012
Location: Miami,FL
Posts: 82
H2Miami is on a distinguished road
Default Re: knocking noise while driving

Just doing a quick update to the problem reported before...

NOise came back after rotating the wheels ....

Shocks replaced and problem fixed ... 2 months later after 1000 miles and towing trailers I can assure the problem was fixed

Also better ride with the new shocks ( bilstein)

Thank you every1
Reply With Quote
  #18  
Old 11-01-2013, 04:09 PM
BUNNY15's Avatar
BUNNY15 BUNNY15 is offline
Hummer Veteran
 
Join Date: Aug 2011
Location: DFW
Posts: 105
BUNNY15 is on a distinguished road
Default Re: knocking noise while drive

Good update
__________________
BUNNY15 aka Tiffany

2003 H2, Moog Idler, Pitman, Up/Low BJ, In/Out TR, Fabtech 6in Lift, Yokohama Geolander M/T 40x15.50x20, Black XD Bombs 20x9, Bilstein 5100 Shocks, Yukon 5:13 gears f/r, Hypertech Max programmer, KC 851 HID's 35w, Pioneer DVD/NAV/TOUCHSC, 10" woofers, 6k Headlight HID's, White LED DRL (wired to run w/headlights on),Custom University of Texas gauges, Custom yellow paint. interior, Fuel pump/filter (Feb '13), Rebuilt 4L60E (April '13) & Rebuilt Transfer Case (Oct '14)
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 12:56 AM.


Powered by vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.