Editing TSB 11 2 2

TSB
11-2-2 6.4L DIESEL - WHITE SMOKE IN DAMP WEATHER CONDITIONS WHEN ACCELERATING

Publication Date: February 1, 2011

FORD: 2008-2010 F-Super Duty

This article supersedes TSB 8-25-1 to remove the production build date, update the vehicle model years and Part List.

ISSUE:
Some 2008-2010 F-Super Duty 250-550 vehicles equipped with a 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 4 °C (40 °F). This smoke only appears during a moderate to full throttle tip-in that is performed after a period of steady state driving.

ACTION:
Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

This procedure only applies if the vehicle meets the following criteria:

Concern is described as significant amounts of white smoke from the exhaust pipe.
White smoke only occurs in high humidity or rainy conditions above 4 °C (40 °F).
White smoke only appears during a moderate to heavy tip-in that is performed after a period of steady state driving (approximately 20 minutes)
No diagnostic trouble codes (DTCs) are present.
Concern is not a result of regeneration, a cleaning exhaust filter event.
If all of the criteria above is true, then replace the charge air cooler (CAC) assembly with a new revised part per Workshop Manual, Section 303-12.

Some white smoke may still be present under severe conditions even after the new level CAC has been installed. This is considered a design characteristic of the charge air system and no repair attempts should be made. This concern does not affect the life of the engine or exhaust components.

PART NUMBER PART NAME
7C3Z-6K775-C Charge Air Cooler Assembly