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Hummer
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2006
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H2 4D Utility Pickup
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - 4.8L, 5.3L, And 6.0L - DTC P0141 To DTC P0454
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DTC P0442
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DTC Descriptor
DTC Descriptor
DTC P0442
Evaporative Emission (EVAP) System Small Leak Detected