Some 2008-2009 Ford F-Super Duty, Econoline and LCF vehicles built between 5-18-2007 and 11-1-2008 and operated in cold climates typical to -35 degrees Fahrenheit and below that are equipped with a 5R110W transmission (part numbers starting with 8C3P-7000, 8C2P-7000, 8E7P-7000, 9C3P-7000, 9C2P-7000 and 9E9P-7000) built without the factory installed external in-line transmission filter can experience premature Low/reverse One Way Clutch failure related to a lack of lubrication while operating in -35 F and below temperatures.
Verify the vehicle build date for F-Super Duty or E-Series vehicles built between 5-18-2007 and 10-27-2008 or LCF built between 5-20-2007 and 11-1-2008. Verify that the vehicle was built without the factory installed external in-line transmission filter. Verify transmission part number.
- Overhaul the transmission following the workshop manual section 307-01.
- While performing a transmission overhaul, replace the front pump with a 9C3Z-7A103-B pump assembly. This new replacement pump assembly can be identified by the engineering part number 9C3P-7A103-AC visibly etched on the machined front face adjacent to the bolt hole.
NOTE: DO NOT install the 9C3Z-7A103-B pump into a vehicle that is already equipped with a factory installed external in-line transmission filter.