Tsb* shudder during 5-4 and 4-5 shift | Ford Explorer Forums - Serious Explorations

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Tsb* shudder during 5-4 and 4-5 shift

Noslo351

Member
Joined
December 18, 2003
Messages
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City, State
Hebron Ct
Year, Model & Trim Level
2002 Explorer Limited V8
My 2002 Explorer V8 has this issue. I thought it was the trans going south. Thought I would share, I did not find this anywhere on the forum.


TSB
03-14-7 TRANSMISSION - 5R55W - SHUDDER DURING 5-4 AND 4-5 SHIFT - VEHICLES BUILT 11/13/00 THROUGH 2/14/02 EQUIPPED WITH 4.6L ENGINE

Publication Date: July 10, 2003

FORD: 2002 EXPLORER
MERCURY: 2002 MOUNTAINEER


ISSUE:
Some vehicles equipped with a 4.6L engine and 5R55W automatic transmission with the vehicle build date between 11/13/00 and 2/14/02, may exhibit a shudder during 4/5 upshift and/or 5/4 downshift.

ACTION:
Follow normal diagnostic procedures and verify the condition. If the condition is valid, reprogram the Powertrain Control Module (PCM) to the latest calibration level. If the condition is not corrected after reprogramming, continue with normal diagnostics to pinpoint the cause. Refer to the following Service Procedure for details.

SERVICE PROCEDURE
If the vehicle is built between 11/13/00 and 2/14/02 and has the conditions listed and does not have the latest PCM calibration, (see chart) reprogram the PCM. Prior to performing any service procedures, verify tear tag information. Vehicle built after 2/14/02 are not affected by this TSB.

Follow the procedures found in the Powertrain Control/Emissions Diagnosis (PC/ED) Service Manual and reprogram the PCM to latest calibration level.
After reprogramming has been completed, the transmission adaptive strategy for pressure control on engagements must be updated.
Install diagnostic equipment and monitor the Transmission Fluid Temperature (TFT).
Warm the transmission fluid to at least 130° F (54° C) as indicated by the TFT.
NOTE: THE FOLLOWING ENGAGEMENTS MUST BE PERFORMED IN ORDER FOR THE ENGAGEMENT PRESSURES TO PROPERLY ADAPT WITH THE NEW CALIBRATION.




Perform five (5) engagements from Park to Reverse. Each engagement must be 5 seconds apart.
Perform five (5) engagements from Drive to Reverse. Each engagement must be 5 seconds apart.
Perform five (5) engagements from Reverse to Drive. Each engagement must be 5 seconds apart.
Perform five (5) engagements from Neutral to Drive. Each engagement must be 5 seconds apart.

PCM CALIBRATION INFORMATION
Old Part Number (-12A650-) Old Tear Tag New Part Number (-12A650-) New Tear Tag Old Calibration New Calibration NGS/WDS Qualifier
1L2F-ARE HMJ4 1U7Z-BPB PFF1 1U51A50B08 1U51A50B10 WDS B25.0.6 Release or Later
1L2F-ARF HMJ5 1U7Z-BPB PFF1 1U51A50B10 1U51A50B10 WDS B25.0.6 Release or Later
1U7A-BPA PFF0 1U7Z-BPB PFF1 1U51A50B10 1U51A50B10 WDS B25.0.6 Release or Later
1L2A-SA CFL0 1U7Z-GUA URS0 1U51A50B15 1U51A50B16 WDS B25.0.6 Release or Later
1L2A-SB CFL1 1U7Z-GUA URS0 1U51A50B16 1U51A50B16 WDS B25.0.6 Release or Later
1L2A-CD EGQ3 1U7Z-BRB REC1 1U51A50M07 1U51A50M10 WDS B25.0.6 Release or Later
1L2A-CE EGQ4 1U7Z-BRB REC1 1U51A50M10 1U51A50M10 WDS B25.0.6 Release or Later
1L2A-BRA REC0 1U7Z-BRB REC1 1U51A50M10 1U51A50M10 WDS B25.0.6 Release or Later
1L2A-ADA HGZ0 1U7Z-GVA VEG0 1U51A50M15 1U51A50M16 WDS B25.0.6 Release or Later
1L2A-ADB HGZ1 1U7Z-GVA VEG0 1U51A50M16 1U51A50M16 WDS B25.0.6 Release or Later
 






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