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2006
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Sierra 2500 2WD V8-6.6L DSL Turbo
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Engine Controls - MIL ON/DTC's P0401/P0403 Set
Engine Controls - MIL ON/DTC's P0401/P0403 Set
This TSB number 06-06-04-066C, dated 07/31/08 has been superceded by TSB number 06-06-04-066D , dated 02/06/09