F 150 Super Crew 2WD V8-4.6L SOHC VIN 6 (2003)
Air Duct: All Technical Service Bulletins
A/C - White Flakes Are Blowing From Dash Vents
TSB 09-21-6
11/02/09
WHITE FLAKES COMING FROM A/C VENTS
FORD:
2005-2009 Focus
2008-2010 Crown Victoria
2000-2005 Expedition, F-150
2007-2009 Edge
2008-2010 Escape Hybrid, Escape
LINCOLN:
2008-2010 Town Car
2000-2005 Navigator
2007-2009 MKX
MERCURY:
2008-2010 Grand Marquis, Mariner Hybrid, Mariner
This article supersedes TSB 9-19-16 to update the Service Procedure.
ISSUE
Some vehicles may experience white flakes coming from the A/C vents when the blower motor is engaged. This may be caused by flux utilized in the
manufacturing process of the evaporator core.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
Hazard and Risk Warnings for White Flakes
WARNING
MAY CAUSE EYE AND RESPIRATORY TRACT IRRITATION. PROLONGED REPEATED EXPOSURE MAY CAUSE BONE DAMAGE
(FLUOROSIS) AND HARM TO THE RESPIRATORY SYSTEM (BASED ON ANIMAL DATA).
^ Avoid inhaling dust.
^ Avoid contact with eyes.
^ Store away from acids.
^ Wash thoroughly after handling.
^ Avoid release to the environment.
NOTE
THE USE OF DUST PROOF GOGGLES, CHEMICAL RESISTANT GLOVES (PVC) AND DUST MASK IS RECOMMENDED.
Using compressed air (maximum inlet pressure) 100 PSI (689 kPa), clean the A/C ducts through the registers and blow off the evaporator core through
the blower motor opening.
NOTE
THE ENTIRE EVAPORATOR CORE SURFACE MUST BE DRY FOR BEST RESULTS.
NOTE
WHILE PERFORMING THIS PROCEDURE AND SELECTING DIFFERENT VENT MODES SUCH AS FLOOR / PANEL AND FLOOR /
DEFROST, IT MAY BE NECESSARY TO TEMPORARILY START THE ENGINE TO ENABLE MODE DOOR MOVEMENT.
Clean A/C Ducts:
