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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1475 (Engine Control System - Diagnosis - 4.8L, 5.3L, & 6.0L (DTC P0172 To DTC P0507)) >> Diagnostic Information & Procedures >> DTC P0455 >> Conditions For Setting the DTC

Conditions For Setting the DTC

WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.

The EVAP system is not able to achieve or maintain vacuum during the diagnostic test.