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2003
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Envoy 2WD V8-5.3L VIN P
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Superceded Bulletins
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Ignition System - New Spark Plugs/Gapping
Ignition System - New Spark Plugs/Gapping
This TSB number 03-06-04-060A, dated 02/12/07 has been superceded by TSB number 03-06-04-060B , dated 07/30/08