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Home >> Oldsmobile >> 2003 >> Silhouette GL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0446: EVAP Emission Control System Vent Control Circuit >> Test Description
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Test Description

The number below refers to the step numbers in the diagnostic procedures.

  1. 4 -  This test determines if the failure is present or intermittent.

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