Some 2008-2010 Ford F-Super Duty 250-550 vehicles equipped with the 6.4L diesel engine may exhibit significant amounts of white smoke from the exhaust pipe while driving in high humidity or rainy conditions at temperatures above 40 degrees F. This smoke only appears during as moderate to full-throttle tip-in that is performed after a period of steady state driving.
The remedy involves replacing the charge air cooler (CAC) assembly with a new revised part, P/N 7C3Z-6K775-C. Only replace the CAC if the following criteria are met:
NOTE: Some white smoke may still be present under severe conditions even after the new level CAC has been installed. This concern does not affect the life of the engine or exhaust components.
PreviousNissan security no-start
NextVW Touareg ABS