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TSB 09-12-5 2009-2010 Explorer, Sport Trac, Mountaineer

CmdrPopNFresh

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Year, Model & Trim Level
'93 Sport
TSB
09-12-5 5R55S TRANSMISSION - WHISTLE NOISE WHEN HOT

Publication Date: June 5, 2009

FORD: 2009-2010 Explorer Sport Trac, Explorer
MERCURY: 2009-2010 Mountaineer


ISSUE:
Some 2009-2010 Explorer, Mountaineer and Explorer Sport Trac vehicles equipped with a 5R55S transmission may exhibit a high frequency whistle noise at idle in any gear position with the transmission fluid temperature at or above 170 degrees Fahrenheit (76 degrees Celsius).

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

SERVICE PROCEDURE


Install IDS/PDS or equivalent.
Verify that the transmission fluid temperature (TFT) PID is above 170 °F (76 °C).
If it is not at 170 °F (76 °C), drive unit approximately 3 miles (5 Km) to reach temperature.
If it is at 170 °F (76 °C), proceed to Step 3.
Return vehicle to idle and verify high frequency whistle noise is present in all gear selector positions (P-R-N-D-L). While vehicle is at idle in park increase engine RPM by 150 to 200 RPM's, the whistle noise will go away.
If above whistle condition can be verified in all gears, proceed Step 4.
If whistle condition cannot be verified or is not present in all selector gear positions, please follow the normal diagnostic routine procedures outlined in the Workshop Manual (WSM), Section 307-01.
Replace the main control separator plate following the WSM, Section 307-01A for Main Control Removal and Disassembly and Assembly of Subassemblies Main Control Valve Body.

PART NUMBER PART NAME
9L2Z-7Z490-A Plate Bonded Separator


WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

OPERATION DESCRIPTION TIME
091205A 2009-2010 Explorer, Mountaineer, Explorer Sport Trac: Replace The Main Control Separator Plate And Includes Time To Diagnose (Do Not Use With Any Other Labor Operations) 2.2 Hrs.

DEALER CODING
BASIC PART NO. CONDITION CODE
7Z490 42
 






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