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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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Old 03-29-2003, 01:38 PM
H2Norcal H2Norcal is offline
 
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Is anyone experiencing what sounds like metal to metal clunking when you engage the 4lo or electronically lock the rear differential?

Mine is not smooth at all and sounds like the gears are grinding hard when engaging. Normal?
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Old 03-29-2003, 01:38 PM
H2Norcal H2Norcal is offline
 
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Is anyone experiencing what sounds like metal to metal clunking when you engage the 4lo or electronically lock the rear differential?

Mine is not smooth at all and sounds like the gears are grinding hard when engaging. Normal?
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  #3  
Old 03-29-2003, 03:32 PM
JohnnyBoy JohnnyBoy is offline
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Mine is as smooth as my little girls bottom!

==================================
'03 Hummer H2 Adv./Lux. Pkgs. Sunset Orange W/Sunroof
Air Spring Susp. Pkg. + 3rd. row seat & DVD System.
CompuStar Auto Security/Remote Starter.
http://www.haugens.com
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\'03 Hummer H2 Adv./Lux. Pkgs. Sunset Orange W/Sunroof
Air Spring Susp. Pkg. + 3rd. row seat & DVD System.
CompuStar Auto Security/Remote Starter.
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Old 03-29-2003, 04:49 PM
HummerN23 HummerN23 is offline
 
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An H2 I tried as a demo had a loud clunk when locking the rear, a slight grinding noise when going to 4lo. the one i bought has no noises like that. but it has the exhaust pop and what sounds like a leak in the a/c.
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Old 03-29-2003, 10:51 PM
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Arizona Hummerboy Arizona Hummerboy is offline
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mine makes a loud noise or clunk when going in to or comeing out of 4 lo. It runs great in 4 lo. I went under it to look for leaks or problems. everythink looks ok. Just that loud noise going into 4 lo.
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Old 03-29-2003, 11:50 PM
H2Norcal H2Norcal is offline
 
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Thanks. It sounds like it may vary vehicle to vehicle. I will add it to my list for service.
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Old 04-01-2003, 02:52 PM
Rushkiboy Rushkiboy is offline
 
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I select different tranny positions,4-hi, 4-loc,4-low, while the wheels are turning very very slow. This made changing very smooth. Remember wheels barely turning.

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