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2011 Chevrolet Express 4500 6.6L White smoke
Posted to GM Driveability on 6/6/2019 7 Replies

This diesel will blow billows of white smoke intermittently. When it does, it seems to run fine and no codes. We thought it was the DEF system pumping excessive urea in the exhaust. We did a flash to delete the DEF system. We removed DPF and still blows wh...

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car Vehicle Data

2011 Chevrolet Express 4500

VIN 1GB6G5CL9B
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsWhite Smoke
OccursIntermittently
Open Help Request

car Vehicle Data

2011 Chevrolet Express 4500

VIN 1GB6G5CL9B
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsWhite Smoke
OccursIntermittently