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2003 chevy trailblazer_lt_ext
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Discussion Starter · #1 ·
I'm suspecting u-joints. Usually makes the noise when put the TB in reverse or under hard acceleration, but get no vibration. Can't see or feel any play in the joints. Also tried shaking everything under there (exhaust, heat shields, spare, sway bars, etc.) but can't reproduce the sound. All sway bar end links are new. Any thoughts? About ready to replace them anyway since they are so cheap. TB has about 103K on the odometer.

Front
http://www.youtube.com/watch?v=s00zfmRUzuk

Rear
http://www.youtube.com/watch?v=xkM3xWNUWJU
 

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2003 chevy trailblazer_ls
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105 Posts
if the noise is a rattleing clunking nosie then more than likely it is the swaybar links you really have to ream on them to get them to make the noise when u check them. also looks can be deceving mine looked new to but once replaced no more noise. :m2:
 

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2009 chevy
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6,431 Posts
Well, your liks aren't working.

But let me suggest, if you are getting, and feeling, a clunk, when you shift from D to R the noise is usually from the U-joints, or the rear end.

You you think the U-joints are tight, well...............

But, they are cheap and someday they will need to be changed.

If you have never changed u-joints, a suggestion is to mark the position of the parts, in relation to each other. Then when re-installed, the balance of the shaft is not affected.

One other thing, some GM u-joints will only come apart with a torch. The plastic inside the joint needs to be melted so the pieces will separate.

BTW, welcome to the site and thanks for filling out the vehicle information in your profile. :thumbsup:
 
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