Death wobble after replacing wheel bearings

[Robert Gessler]

Hey all, so I just replaced some bad wheel bearings (DIY) installation went smoothly and the noise is gone but now I've been getting the death wobble at about 60-65 mph usually when slowing down
I did not have this before I did the bearings. The bearings i bought were MOOG assemblies so not some cheap crap i found online or anything. I did a dry steering test and I didnt see anything obvous. Any help would be appreciated

Edit: checked my track bar and there is no play in it at all so its rock solid.

P.s Chris I read your post regarding wobbles and vibes.

 

[ohiopatriot]

Lugs tight?

 

[05 Blue Unlimited]

Along with checking the lugs I wonder if a wheel weight came off?

 

[Robert Gessler]

Lugs tight?

Tightened and torqued to 115

 

[Robert Gessler]

Along with checking the lugs I wonder if a wheel weight came off?

Theres none laying in my garage and they all seem to be there

 

[05 Blue Unlimited]

Theres none laying in my garage and they all seem to be there

Before you get to deep in replacing stuff I would get a good wheel balance.

 

[Robert Gessler]

Before you get to deep in replacing stuff I would get a good wheel balance.

I just got one less than a few weeks ago (I work at discount tire so I trust my boys) but it definately wont hurt to get another one.

 

[mots]

Tire size and PSI?

 

[Robert Gessler]

Tire size and PSI?

Stock size. I'm assuming 32-34 (I had it checked at discount tire to the factory setting)

 

[Chris]

Is it death wobble or a vibration?

 

[Robert Gessler]

Is it death wobble or a vibration?

Kinda feels like a demon is possessing the vehicle yeah its death wobble. (I've been in other jeeps with DW) only way to make it stop is basicly slowing to a crawl or stop

 

[Chris]

Kinda feels like a demon is possessing the vehicle yeah its death wobble. (I've been in other jeeps with DW) only way to make it stop is basicly slowing to a crawl or stop

Yep, it is death wobble then in that case, as death wobble doesn't go away at certain speeds, nor can you power through it with more throttle.

Usually when it's true death wobble, it typically ends up being a bolt that isn't torqued down properly, and that usually ends up being the track bar bolts. Does it have anything to do with when you apply the brakes to slow down?

 

[Robert Gessler]

Yep, it is death wobble then in that case, as death wobble doesn't go away at certain speeds, nor can you power through it with more throttle.

Usually when it's true death wobble, it typically ends up being a bolt that isn't torqued down properly, and that usually ends up being the track bar bolts. Does it have anything to do with when you apply the brakes to slow down?

No it happens when I coast or use the brakes or even the engine to slow the vehicle. Or even if I just hang around 60 too long. I can cruise at 70-75 just fine though. sometimes it dosnt start at all.

 

[ElectricWizard]

I would suggest checking and torquing your track-bar bolts as well. You can also paint mark the heads of bolts to see if anything isn't staying tight.

 

[Robert Gessler]

I can twist my tie rod though so it has some play on it. It does take a fair amount of effort though.

 

[Robert Gessler]

I would suggest checking and torquing your track-bar bolts as well. You can also paint mark the heads of bolts to see if anything isn't staying tight.

I'll give that a go. Does anyone have those numbers on hand ( or a link to them?)

 

[ElectricWizard]

I'll give that a go. Does anyone have those numbers on hand ( or a link to them?)

My FSM shows 55 ft/lbs for axle side and 65 ft/lbs for the frame side of the track bar.

 

[glwood]

I can twist my tie rod though so it has some play on it. It does take a fair amount of effort though.

Tie rod should be able to have some rotational movement, or it wouldn't be able to do its job. Tie rod ends allow some movement.

 

[Boinked]

How do the control arm bushings look?
Also check them for tightness

 

[Robert Gessler]

My FSM shows 55 ft/lbs for axle side and 65 ft/lbs for the frame side of the track bar.

I'm restless anyway so I'm gonna go run outside and do that really quick. (Ugh great timing because I've got a 5 page paper due on wednsday... fun )