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2007
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TrailBlazer 4WD V8-6.0L
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Audio System - Pop From L/H Front Speaker on Start Up
Audio System - Pop From L/H Front Speaker on Start Up
This TSB number 06-08-44-021A, dated 04/01/08 has been superceded by TSB number 06-08-44-021B , dated 09/04/08