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GMC
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2006
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Sierra 1500 HD, RWD
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Repair and Diagnosis
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External Pages
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Different variant/trim
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Section 31 (ENGINE CONTROLS - 6.6L - DIAGNOSIS (DTCs P0402-P2636))
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DTC P0402
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Repair Procedures
Repair Procedures
WARNING:
This page is about a different variant/trim than selected.
IMPORTANT:
Always perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
Exhaust Gas Recirculation (EGR) System Cleaning
Exhaust Gas Recirculation (EGR) Valve Replacement