Mountaineer 2WD V8-4.6L VIN 8 (2006)
Shift Solenoid: Customer Interest
A/T - MIL ON/DTC P783 Set
TSB 06-7-3
04/17/06
WRENCH LIGHT ON - DTC P0783
FORD:
2006 Explorer
MERCURY:
2006 Mountaineer
ISSUE
Some 2006 Explorer 4dr and Mountaineer vehicles built prior to 1/31/2006 equipped with a 6R60 transmission may exhibit the powertrain malfunction
indicator lamp (Wrench Light) on with diagnostic trouble code (DTC) P0783 (3-4 Shift Error). This may be the result of transmission fluid
contamination, or a contaminated shift solenoid.
ACTION
Refer to the following Service Procedure to determine the appropriate repair procedure.
SERVICE PROCEDURE
1.
Check transmission fluid for presence of water contamination by removing the transmission dipstick. If water contamination is present, replace the
transmission assembly. If no water contamination is present, proceed to Step 2.
NOTE
TRANSMISSION FLUID CONTAMINATED BY WATER WILL HAVE A "PINK" MILKY APPEARANCE.
NOTE
IF TRANSMISSION REPLACEMENT IS REQUIRED, FOLLOW ALL NORMAL PROCEDURES AND GUIDELINES FOR PRIOR
APPROVAL.
2.
Test drive vehicle to obtain transmission shifts through all gear ranges.
a.
If the transmission unsuccessfully attempts the 3-4 shift up to five (5) times, then turns on the Wrench Light and reverts to fail-safe mode,
the shift solenoid is suspect. Proceed to Step 3.
b.
If concern is present and can not be duplicated, do not continue with this TSB. Follow normal Workshop Manual diagnostics.
3.
Remove the mechatronic assembly and replace the shift solenoid using the following steps:
a.
Remove the mechatronic assembly following the procedure listed in the online Workshop Manual, Section 307-01B.
b.
Once the mechatronic assembly is removed, remove the six (6) long bolts attaching the transmission control module (TCM) to the
mechatronic assembly (Figure 1), and carefully separate the TCM from the mechatronic assembly.