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2003
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TrailBlazer 4WD L6-4.2L VIN S
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Superceded Bulletins
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Engine - In Service Cylinder Head Service Procedure
Engine - In Service Cylinder Head Service Procedure
This TSB number 07-06-01-018, dated 09/07/07 has been superceded by TSB number 07-06-01-018A , dated 05/30/08