6R140 Transmission Rebuild Manual
At the start of production for the 2011 model year Ford Motor Company introduced a newly designed full time six speed 6R140W transmission also known as the Torqshift® 6, for the F250 to F550 Super Duty truck models equipped with the 6.2L Gas Flex Fuel engine or the 6.7 Turbo Diesel engine. It is available in both 2WD and 4WD configurations and can be Power Take-Off capable. The 6R140W assembled weight is 350 Lbs. and is of the Lepelletier geartrain design consisting of a Simpson planetary gearset, a Ravigneaux gear set, two holding clutches, three drive clutches, a one-way clutch and a torque converter clutch. TCC can be commanded on from first to sixth gear. The 6R140W is electronically controlled by seven pwm solenoids and uses a Transmission Control Module (TCM) in diesel powered applications or a Powertrain Control Module (PCM) for gasoline powered applications. When the TCM/PCM detects a fault, Failure Mode Effect Management (FMEM) will be initiated and the transmission will enter fifth and reverse gear limp mode. The transmission system is also capable of Tow Haul Mode which will provide all six speeds at higher shift points and also has manual shift capability.GENERAL DESCRIPTION & TRANSMISSION APPLICATION.............................................. 3COMPONENT APPLICATION...................................................................................................... 4SHIFT QUADRANT INFORMATION........................................................................................... 5TRANSMISSION IDENTIFICATION........................................................................................... 6TRANSMISSION FLUID LEVEL DRAIN & FILL PROCEDURE............................................. 7LINE PRESSURE TESTING & SPECIFICATIONS.................................................................... 8SOLENOID BODY IDENTIFICATION & STRATEGY............................................................... 9SOLENOID APPLICATION & IDENTIFICATION................................................................... 10ADAPTIVE DRIVE CYCLE & SOLENOID BODY STRATEGY DOWNLOAD...................... 11SOLENOID FUNCTION & OPERATION.................................................................................. 12TYPICAL WIRE SCHEMATIC - GASOLINE ENGINES.......................................................... 13TRANSMISSION & PCM CONNECTOR TERMINAL IDENTIFICATION - GASOLINE ENGINES..... 14TYPICAL WIRE SCHEMATIC - DIESEL ENGINES................................................................. 15TRANSMISSION & TCM CONNECTOR TERMINAL IDENTIFICATION - DIESEL ENGINES.. 16TRANSMISSION RANGE SENSOR & OUTPUT & TURBINE SPEED SENSOR DESCRIPTION.. 17TRANSMISSION FLUID TEMPERATURE SENSOR & FOUR WHEEL DRIVE DESCRIPTION...... 18DIAGNOSTIC TROUBLE CODES.............................................................................................. 19TRANSMISSION DISASSEMBLY............................................................................................... 22COMPONENT REBUILD SECTIONFRONT PUMP ASSEMBLY- DISASSEMBLE.......................................................................... 36FRONT PUMP ASSEMBLY- ASSEMBLE................................................................................. 40FORWARD/OVERDRIVE CLUTCH ASSEMBLY - DISASSEMBLE...................................... 461-2-3-4 & 3-5-R CLUTCH ASSEMBLY - DISASSEMBLE......................................................... 481-2-3-4 & 3-5-R CLUTCH ASSEMBLY - ASSEMBLE................................................................ 524-5-6 CLUTCH ASSEMBLY - DISASSEMBLE........................................................................... 584-5-6 CLUTCH ASSEMBLY - ASSEMBLE................................................................................. 60FORWARD/OVERDRIVE CLUTCH ASSEMBLY - ASSEMBLE............................................. 632-6 CLUTCH ASSEMBLY - DISASSEMBLE.............................................................................. 672-6 CLUTCH ASSEMBLY - ASSEMBLE...................................................................................... 69LOW/REVERSE CLUTCH PISTON ASSEMBLY - DISASSEMBLE....................................... 73LOW/REVERSE CLUTCH PISTON ASSEMBLY - ASSEMBLE.............................................. 74LOW ONE-WAY DIODE/REAR PLANETARYASSEMBLY...................................................... 76TRANSMISSION ASSEMBLY...................................................................................................... 78MAIN CONTROL VALVE BODY - DISASSEMBLE.................................................................. 93MAIN CONTROL VALVE BODY - ASSEMBLE......................................................................... 99TRANSMISSION ASSEMBLY CONTINUED.......................................................................................................................................................... 103CASE PASSAGE IDENTIFICATION.......................................................................................................................................................... 109TORQUE SPECIFICATIONS.......................................................................................................................................................... 110SPECIALTY TOOLS.......................................................................................................................................................... 111
