Sierra 2500 4WD V8-6.6L DSL Turbo (2007)
Evaporative Emissions System: Vehicle Damage Warnings
Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Notice
Notice: Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:
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The fuel pipe connections
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The hose connections
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The areas surrounding the connections