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Unread 01-25-2012, 12:47 PM   #1
fireRANG
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Join Date: Jan 2012
Location: Boulder, CO
Posts: 1
Tire pressure DEATH WOBBLE

I recently experienced a very scary situation in my 08 Stock wrangler. I was driving on the interstate through the mountains, coming down the backside of a mountain pass, when i slightly pressed the brake. I reduced about 5 MPH from 55 to 50 when the car began shaking quite violently. I didn't knwo what to do, and figured if i kept braking it owuld get worse, so i released the brake and shifted into 2nd(automatic transmission). the shaking then stopped. over the rest of the trip, i would get similar shaking when braking. i began reading about it and learned about the death wobble. I dont think that i have this as ive read the death wobble only happens when you have to pretty much completely stop for the wobble to stop, and i did not require that.

Anyways, i read it may be tire pressure, and i checked my tire pressure - stock wrangler tires - side door says 35 psi - my front right was at about 29, while the other 3 tires were nearly at 50! i have no clue how this happened. had the car serviced recently, bu tbesides the point. is it likely this uneven tire pressure was the cause? i did a visual inspection of the underside and everything looks in line - no shiny spots or loose bolts. any thoughts would be appreciated as im a bit scared to get back on teh mountian highways after exeriencing this.

much thanks to all

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Unread 01-27-2012, 04:53 PM   #2
PMSteve
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2001 TJ Wrangler 
 
Join Date: Jul 2011
Location: Middle of Nowhere,, Nevada
Posts: 115
When I first got my TJ it had a slight wobble but it cleared up after having the tires balanced and the pressures checked.

My old Toy 4WD puickup had the same symptoms that you described. After several trips to a Toy dealer they discovered a "mis-aligned and slightly loose" front brake disc (their explanation - I'm not a mechanic). Who knows what caused it?

Even after they "Serviced" it (and me) it continued to be a problem until I sold the truck. Never did find out the truth.

Take yours to your dealer and make a pest of yourself - the squeaky wheel gets thew grease (NO PUN INTENDED).
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Unread 01-27-2012, 05:04 PM   #3
ChaseB
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2005 TJ Wrangler 
 
Join Date: Oct 2010
Location: Lafayette, LA
Posts: 1,598
Shaking when braking is often due to badly worn rotors. I would have horrible shaking at around 55 in my TJ. After I replaced the rotors, it's no longer an issue.
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death wobble , psi , shakes , shaking , tire pressure

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