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2006
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TrailBlazer 6.0 H, AWD
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Repair and Diagnosis
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Different variant/trim
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Section 15 (Engine Control System - 4.2L - DTC P2101 To P2444)
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DTC P2440
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DTC Descriptor
DTC Descriptor
WARNING:
This page is about a different variant/trim than selected.
DTC P2440
Secondary Air Injection System Switching Valve A Stuck Open