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2008 GMC Yukon Hybrid – Check Engine Light With P0430

Aug 15
1 min read

CUSTOMER CONCERN

Check-engine light is on with DTC P0430, although the engine otherwise runs normally.

CAUSE

Fuel-trim, misfire, coolant-consumption, and catalyst testing confirmed the bank 2 catalytic converter had failed.

CORRECTION

Remove and replace the failed bank 2 catalytic converter.

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2008 GMC Yukon Hybrid – Check Engine Light With P0430

CUSTOMER CONCERN

CAUSE

CORRECTION

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