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2006 Trailblazer LS 4.2L I6
25 Posts
Fellas I don't post much but you all have help me out s lot. have only a small iPhone .

Similar trouble as this old thread . Hope someone can help,

I have a vibration in a 2004 envoy 4wd. Feel it thru steering - no bad but was there before and shouldn't be there. Hear slight noise / almost like a light rumble strip.
It seemed louder when turning right so I replaced left wheel hub assembly with new Timken ( 108k miles ) Still there. Still slightly louder on right turning.
Put spare tire on left thinking I may have tire delaminating- still there.
Changed transfer case fluid still there.
In doing fluid, I drain out while doing the wheel work,so it was on jack stands, was only able to put in one quart before overflow. So lowered car to normal And checked level, it is ok.
I did note when I had wheel off that upon spining it I heard slight sound from transfer case.

Any help would really be appreciated, as I got to do some highway traveling and at this time am afraid to.


Denny, I realize this is an old post, but did you figure out the source of the noise? I'm having similar noise with my TBL. Thanks!
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