Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
Case: Customer Interest
A/T - Loss Of 2nd/3rd/5th Gears/Ratio DTC's Set
TSB 09-12-12
06/29/09
5R555/5R55N/5R55W TRANSMISSIONS - SHIFT
CONCERNS, LOSS OF 2ND, 3RD AND 5TH GEAR,
INCORRECT RATIO DTC'S - PROCEDURE TO
INSPECT AND REPAIR SERVO PIN BORE WEAR
FORD:
2002-2005 Thunderbird
2005-2009 Mustang
2002-2009 Explorer
2007-2009 Explorer Sport Trac
LINCOLN:
2002-2006 Lincoln LS
2003-2005 Aviator
MERCURY:
2002-2009 Mountaineer
ISSUE
Some 2002-2009 Explorer, Mountaineer, 2007-2009 Explorer Sport Trac, 2002-2006 Lincoln LS, 2005-2009 Mustang, 2002-2005 Thunderbird and
2003-2005 Aviator vehicles equipped with a 5R55S, 5R55W, and 5R55N transmission may experience shifting concerns. A loss of 2nd, 3rd and 5th
gear, may have overdrive band or intermediate band failures due to servo pin case bore wear causing reduced apply pressure.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
For transmissions that have been determined to require an overhaul or rebuild and the overdrive band or intermediate band have excessive wear or
burned/damaged band friction material, the cause maybe excessive servo pin case bore wear generally found on higher mileage vehicles, usually
accompanied with incorrect ratio diagnostic trouble codes (DTCs), condition becomes worse when hot. (Figure 1)
In our instructions, when we refer to the overdrive bore, we are talking about the smaller bore located closest to the bell housing. When we refer to the
intermediate bore, we are talking about the larger bore located next to the line pressure tap.
Inspect and repair the worn-damaged transmission case servo pin bore utilizing the Rotunda Tool 5RW Master Kit part number NRL5RW servo pin bore
repair system (1-800-768-8632 option 6).
