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2004 chevy trailblazer_ls_ext
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2004 Trailblazer EXT - V6
I hear a rattling noise coming from under the truck when pressing the gas lightly (800 - 1200 RPM). Happing whether in Park, Nuetral or any other gear. Otherwise truck seems to be running fine. Started to notice a couple months ago at cold start up, now seems to do it all the time, even after running. At hight speeds or rpm, all is fine.
 
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