TSB 10-12-4 5.4L Transmission Delayed/Harsh Downshift Above 40MPH

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TSB 10-12-4

07/05/10

5.4L 3V AND 6R80 TRANSMISSION -
DELAYED/HARSH DOWNSHIFT ABOVE 40 MPH (64
KM/H)

FORD:
2009-2010 Expedition, F-150

LINCOLN:
2009-2010 Navigator

ISSUE
Some 2009-2010 Expedition and Navigator vehicles built on or before 5/1/2010 and 2009-2010 F-150 vehicles built on or before 2/1/2010 and equipped with 5.4L 3V engine and 6R80 transmission may exhibit a delayed then harsh downshift during a commanded downshift at speeds above 40 MPH (64 Km/h).

ACTION
Follow the Service Procedure to correct the condition.

SERVICE PROCEDURE

1. Install Integrated Diagnostic System (IDS)/Portable Diagnostic Software (PDS) or equivalent and ID vehicle.

2. Reprogram the powertrain control module (PCM)/transmission control module (TCM) calibration using IDS release 67.03 and higher. This new calibration is not included in the VCM 2010.5 DVD. Calibration files may also be obtained at the website.

NOTE THE TCM CANNOT BE INDEPENDENTLY REPROGRAMMED, REPROGRAM USING THE PMI FUNCTION TO ENSURE THAT ENGINE AND TRANSMISSION CALIBRATIONS ARE UPDATED TO THE LATEST LEVEL SIMULTANEOUSLY.

a. Verify that the 1CM Calibration is:

(1) AL3P-7J104-AC for all vehicles except the F-150 4X4.

(2) AL3P-7J104-BC for F-150 4X4.


b. Select the following from the IDS tool:

(1) Toolbox

(2) Powertrain

(3) OBD Test Modes

(4) Mode Level 9 Vehicle Info

(5) 1CM Cal Part Number


3. Clear TCM keep alive memory (KAM) and adaptive tables.

NOTE IT IS CRITICAL THAT 1CM KAM BE CLEARED FOR THIS PROCEDURE TO BE FULLY EFFECTIVE

a. Using IDS:

(1) Open Toolbox

(2) Choose Powertrain Then Choose TCM

(3) Choose Reset KAM


b. Using PDS:

(1) Choose all Tests and Calibrations

(2) Scroll down the menu and choose reset 1CM KAM


NOTE FOR PDS, RESET TCM KAM IS NOT THE SAME AS CLEAR TRANSMISSION ADAPTIVE TABLES, WHICH IS UNDER THE POWERTRAIN - TRANSMISSION MENU TREE.

NOTE UNHOOKING THE BATTERY WILL NOT CLEAR THE TCM KAM. IT IS CRITICAL THAT TCM KAM BE CLEARED PRIOR TO RELEARNING THE ADAPTIVE TABLES FOR THE TRANSMISSION.

NOTE DO NOT CLEAR THE PCM KAM.

4. Verify that the transmission fluid temperature (TFT) PID is above 175 °F (80 °C). If it is not at 175 °F (80 °C), drive unit approximately 3 miles (5 Km) to reach temperature.

NOTE TFT MUST BE AT 175 °F (80 °C) OR ABOVE BEFORE PROCEEDING TO STEP 5.

NOTE PERFORM ADAPTIVE SHIFT STRATEGY LEARN ON LEVEL SURFACE ROAD.

5. Drive unit to perform adaptive shift strategy learn.

a. Accelerate from a stopped position with light throttle to 15 MPH (24 Km/h) and remove foot from accelerator pedal.

b. Brake very gently to a complete stop, allow at least six (6) seconds.

c. Repeat steps (a-b) five (5) times in the dealership parking lot or similar setting.

d. Accelerate from rest with light throttle ensuring that the 1-2, 2-3 and 3-4 shifts occur at engine speeds between 1700-2000 RPM.

e. Continue to accelerate until you achieve 50 MPH (80 Km/h) or the 5-6 upshift.


f. Brake gently to a complete stop and hold foot on brake for ten seconds.

g. Repeat steps (d-f) three (3) times.


NOTE SEVERAL DAYS OF DRIVING ARE REQUIRED FOR THE TRANSMISSION TO FULLY ADAPT.

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

101204A 2009-2010 Expedition, 1.0 Hr.
Navigator, F-150:
Reprogram The PCM And
TCM, Includes Time To
Clear KAM And Perform
Road Tests (Do Not Use
With Any Other Labor
Operations)

DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 42
 
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