A/T - 4R44E/5R55E OD Lamp Flashing/Codes Set
Article No.99-8-6
05/03/99
^ LAMP - O/D TRANSMISSION LAMP FLASHING -
DIAGNOSTIC TROUBLE CODES (DTCS) P0741
AND/OR P1740 - VEHICLES BUILT FROM 10/1/1997
THROUGH 1/31/1998
^ TRANSMISSION - 4R44E OR 5R55E - OLD LAMP
FLASHING WITH DIAGNOSTIC TROUBLE CODES
(DTCS) P0741 AND/OR P1740 - VEHICLES BUILT
FROM 10/1/1997 THROUGH 1/31/1998
LIGHT TRUCK:
1998 EXPLORER, MOUNTAINEER, RANGER
ISSUE
A flashing Overdrive (O/D) light with Diagnostic Trouble Codes (DTCs) P0741 and/or P1740 may be evident. Torque Converter Clutch (TCC) solenoid lot numbers 769 and 771 may have damaged crimping points on the pintle. This allows the disc to move, causing the TCC solenoid to malfunction.
ACTION
Perform normal diagnostics and inspect the TCC solenoid for lot number 769 or 771, broken crimping points, movement of the pintle and/or a broken TCC solenoid bracket. If any of these concerns are present, replace the TCC solenoid. New parts outside of lot number 769 or 771 do not have the crimping point damage concern. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
Some vehicles may exhibit an O/D light flashing with DTC P0741 and/or P1740.
1. Perform normal diagnostics.
2. If the O/D light is flashing and DTC P0741 and/or P1740 is present, remove and inspect the TCC solenoid.
3. Inspect the following areas (refer to Figure 1):
a. Crimping points broken.
b. TCC solenoid bracket broken.
c. Lot numbers 769 or 771 present.
d. Pintle may be moved in and out.
4. If any of the above concern areas are present, replace the TCC solenoid.
5. Erase the DTCs and verify the repair.
NOTE
RETURN AFFECTED LOT NUMBERS 769 AND 771 THROUGH THE WARRANTY SYSTEM. PLEASE FILL OUT THE WARRANTY TAG WITH THE CONCERN AND TRANSMISSION TAG INFORMATION.
PART NUMBER PART NAME
F77Z-7G136-AA Torque Converter Clutch (TCC)
Solenoid
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
990806A Inspect And Replace 0.9 Hr.
Torque Converter Clutch
(TCC) Solenoid
DEALER CODING
CONDITION
BASIC PART NO. CODE
7G136 61
OASIS CODES: 206000, 501000, 502000, 504000