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GMC
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2002
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Jimmy 2D Utility, Part Time, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls Self-Diagnostics - 4.3L
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Diagnostic Tests
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DTC P0446: EVAP Vent Valve Performance
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Test Description
Test Description
The numbers below refer to the step numbers in the diagnostic procedures.
4
This test determines if the failure is present or intermittent.