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04-06-2011, 12:03 AM
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Hummer Expert
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Join Date: Mar 2009
Location: Burnsville, MN
Posts: 657
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steering violently shaking while braking..
so on the highway today..
traveling about 55mph and started braking due to car in front of me.
front tires start shaking as if i was rocking the steering wheel back and forth very fast. slowly down made the shaking worse, but a little slower.
after i pulled over and looked everythign over, i drove away without any issues.
i have noticed for about the last week some minor vibrations while breaking, but nothing like this.
need some thoughts on this.
after i got home tonight, i looked it over once again.
nothign loose, or broke
i havent jacked up the front end to check lug nuts, but will be doing that.
both tires felt like they were well conencted during the shaking, not as if the tires were trying to go opposite directions, so i think the linkage is good.
steering box?
also thinking maybe brake rotors?
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04-06-2011, 12:32 AM
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Hummer Expert
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Join Date: Feb 2009
Location: Nashville, TN
Posts: 887
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Re: steering violently shaking while braking..
Sounds like your rotors for sure, did you by any chance run them hot and then hit a puddle of water? They can bend with hot/cold shock, even the slightest bend would make your steering shake, you can have them diamond cut shaved to make them smooth again for pretty cheap and get new pads while you're at it. See if that works?
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04-06-2011, 12:57 AM
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Hummer Expert
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Join Date: Mar 2009
Location: Burnsville, MN
Posts: 657
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Re: steering violently shaking while braking..
was thinking of straight out replacing them ever since i first noticed the shakes.
the brake job is a little over a year old tho..
but i didnt turn the rotors before........
but i dont want to latch on the first response.. not saying its not it, but still listening to what else could be it.
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04-06-2011, 08:18 PM
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Hummer Professional
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Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
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Re: steering violently shaking while braking..
I would check all of the steering components first. Like the steering damper, tie rod ends, etc. Warped rotors usually cause your brake pedal to pump up and down when applying pressure..
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04-06-2011, 08:33 PM
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Hummer Expert
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Join Date: Mar 2009
Location: Burnsville, MN
Posts: 657
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Re: steering violently shaking while braking..
SD - about 2 years old, but dont suspect this to be the cause of the shaking due to its inate role in steering.
tierods- upgraded from Fabtech HD to the Kryptonites, but have not put the replacement ends on yet from the recall.
all ball joints were replaced within the last 6 months
upper and lowers, idler, pivoter, and pitman.
new shocks within this time
both half shafts replaced within the last 3 months
i just ordered new rotors, so they will hopefully go on minutes after they are delivered
http://www.ebcbrakes.com/automotive/...t_rotors.shtml
$192 from amazon FYI.. most auto places its mid $200
im thinking of rebuilding/replacing both calipers while i am at it, but not sure im that motivated yet.
Last edited by Hellz : 04-06-2011 at 09:17 PM.
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04-07-2011, 06:29 PM
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Hummer Guru
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Join Date: Jan 2004
Posts: 7,060
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Re: steering violently shaking while braking..
I am going with the tierods on this one. You should get those swapped out since the known issues with the bad Krypto's. I ordered a set and did not install them. i had to swap them out. I stil lhave mine sitting in the garage though. LOL, I really need to get those installed. I read somewhere that they can get play in them with the "bad" ends. So I bet this could be your issue.
Steering stabilizer was my other guess since the other steering components were all replaced. Sucks, but you will have to go back through everything again, including the intermediate steering shaft too.
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