# 2004 chevy trailblazer

**URL:** <https://community.cartalk.com/t/2004-chevy-trailblazer/78110>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [March 19, 2013, 4:06am UTC](https://community.cartalk.com/t/2004-chevy-trailblazer/78110 "2013-03-19T04:06:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dustin\_shoultz](https://avatars.discourse-cdn.com/v4/letter/d/48db29/32.png) [@dustin\_shoultz](https://community.cartalk.com/u/dustin_shoultz)\
**Post date:** [March 19, 2013, 4:06am UTC](https://community.cartalk.com/t/2004-chevy-trailblazer/78110/1 "2013-03-19T04:06:39Z")

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my wife has a 04 chevy trailblazer ltd with 4wd i have a couple of questions “service 4wd” comes on seems stuck in 4wd has moaning noise over 20mph moaning goes away when turning has grinding noise coming from front and sometimes a clanking noise that doesnt sound like something heavy but not very light either

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**Author:** ![shannon\_darst](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shannon_darst/32/2606_2.png) [@shannon\_darst](https://community.cartalk.com/u/shannon_darst)\
**Post date:** [March 19, 2013, 5:55am UTC](https://community.cartalk.com/t/2004-chevy-trailblazer/78110/2 "2013-03-19T05:55:07Z")

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it could be a couple of things. 1. wheel bearings 2. u-joints 3. differential is bearings. I could be wrong but those are the first things that come to mind.

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**Author:** ![Barkydog](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/barkydog/32/2470_2.png) [@Barkydog](https://community.cartalk.com/u/Barkydog)\
**Post date:** [March 19, 2013, 6:02am UTC](https://community.cartalk.com/t/2004-chevy-trailblazer/78110/3 "2013-03-19T06:02:36Z")

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Is there a selector switch and what position do you leave it in? Sounds like the front transfer case to me. Do you rotate the tires?