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2016 Chevrolet Volt Premier – Check Engine Light With P0401

Aug 16
1 min read

CUSTOMER CONCERN

The malfunction indicator lamp is on with DTC P0401 for insufficient EGR flow.

CAUSE

The EGR cooler was restricted and could not provide the commanded exhaust-gas flow.

CORRECTION

Remove and replace the restricted EGR cooler.

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2016 Chevrolet Volt Premier – Check Engine Light With P0401

CUSTOMER CONCERN

CAUSE

CORRECTION

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