gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Engine Controls - MIL ON/DTC's P0403/P0401 Set|Page 13372 > < Engine Controls - MIL ON/DTC's P0403/P0401 Set|Page 13370
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5. Request and start the EGR Valve Motor Cleaning procedure with a Tech 2(R) using the steps 1 - 6 shown above.

6. Once the cleaning cycling is complete, disconnect the Tech 2(R) and remove the charger from the vehicle.

7. Verify the condition has been corrected by evaluating the vehicle's performance and EGR operation.

Engine Controls - MIL ON/DTC's P0403/P0401 Set|Page 13372 > < Engine Controls - MIL ON/DTC's P0403/P0401 Set|Page 13370