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

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  #1  
Old 01-26-2008, 07:05 AM
MattRoberts123 MattRoberts123 is offline
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Default Re: BAD RIDE... I am about to sell this thing

I'm at about 22,000 miles right now.... and have NEVER been off road.
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  #2  
Old 01-26-2008, 12:07 PM
WEST OZ H2 WEST OZ H2 is offline
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Default Re: BAD RIDE... I am about to sell this thing

Quote:
Originally Posted by MattRoberts123
I'm at about 22,000 miles right now.... and have NEVER been off road.

Matt,

An easy check for shocks, Stand the vehicle on a hard flat surface ( driveway etc) ensure it's in park, somewhere on either the left or right get a good grasp of the vehicle and start to rock from side to side (left to right or vise versa ) get a good rockup on the vehicle and then let go and stand back. The vehicle should come to an almost immediate halt. i.e. bounce bounce stop.

Now if the vehicle is hard to rock and has very little give the shockies my be too stiff, if the vehicle rocks excessivly easily and keeps doing so after letting go the shockies are possibly shot.

There is a special machine that witll test the rebound of shocks, I guess a good suspension place over there may have one.

"Starting about 6 months ago, my suspension was doing the creaking thing real bad. Took it into the dealer, they claim to have added spacers or whatever, and the noise went away for the most part. A short time later, I started to notice HORRIBLE ride quality on the truck!!!


This I think is partly the key, how was the ride immediatly after the "spacer" bit? How long was a "short time"

The problem, from my best description is that the car acts like a super sensitive teeter-totter. If I hit a bump on the road... (even the size of a penny on the ground) the front suspension reacts, followed by the rear, and it just continues to keep bouncing. Now, this isn't a big long bounce, it is like a real short and tight bouce, and it is so tight that it keeps going... When I drive around, if no one is in the front seat, I can watch that thing shake to the point that I dont understand how it is still attached.


This almost sounds like your getting Harmonics being setup, is this a front back pitch or a sideways roll? Does it get faster or is the rythem the same?

Let me know.

Al

Last edited by WEST OZ H2 : 01-26-2008 at 12:22 PM.
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  #3  
Old 01-26-2008, 05:01 PM
MattRoberts123 MattRoberts123 is offline
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Default Re: BAD RIDE... I am about to sell this thing

Ok, went out an pushed around on the car. I'm not a huge guy... about 170 lbs, but I was jumping, pushing, and throwing myself on the corners of the car, and the truck barely moved... probably not even a whole inch up/down.

The movement is a front to back bounce... like the axles are the 2 pivot points and keep sending tremors back and forth between each other.


Harmonics?
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Old 01-26-2008, 09:24 PM
Cesardajr Cesardajr is offline
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Default Re: BAD RIDE... I am about to sell this thing

Just a thought check you sway bar ends and links make sure every thing is tight and not loose. just a tought.
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  #5  
Old 01-27-2008, 05:16 AM
WEST OZ H2 WEST OZ H2 is offline
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Default Re: BAD RIDE... I am about to sell this thing

Quote:
Originally Posted by MattRoberts123
Ok, went out an pushed around on the car. I'm not a huge guy... about 170 lbs, but I was jumping, pushing, and throwing myself on the corners of the car, and the truck barely moved... probably not even a whole inch up/down.

The movement is a front to back bounce... like the axles are the 2 pivot points and keep sending tremors back and forth between each other.


Harmonics?

Mate,
You don't have to be the Hulk to make it bounce.

Scenario 1 is I think the valving in the shocks are shot. If your only getting less than an inch in movement the oil in your shocks is not being allowed to flow through the valves.

The other sceanaro is when they put in the spacers they've put too much in and lifted the body too high, reducing the shocky travel.

To check travel, if your able, jack the vehicle up by the body, not under the axle, follow the following steps;
1.Car on flat ground in park, blah..blah...blah
2.If the shocky has a sleeve coming down over the body mark clearly and concisely with a chemi pen where the sleeve ends on the body.
3.Jack up body until wheel just leaves the ground.
4. Measure the distance from your mark to the bottom of the sleeve.

Carry this out on the back and front shocks.

Now I'm not 100% sure on full travel length, maybe someone (Tomp) can chip in, but I recon at least 3" and definatly more than 1".

Harmonics are effectivly a frequency, they can start with a long modulation and shrink to a short modulation cancelling themselves out, I think travel is more the cause in your case.

Let me know how you go.

Al

Last edited by WEST OZ H2 : 01-27-2008 at 05:22 AM.
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  #6  
Old 01-30-2008, 12:45 AM
WEST OZ H2 WEST OZ H2 is offline
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Default Re: BAD RIDE... I am about to sell this thing

Any progress?
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  #7  
Old 01-30-2008, 06:58 AM
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pteam pteam is offline
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Default Re: BAD RIDE... I am about to sell this thing

I said replace the shocks first, I win! Have them replace it underwarranty for free, $0 cost to you, is what I would try first.
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