Items marked by the "6F50" tag:
Articles
Transmission general data
The family of 6-speed automatic transmissions Ford 6F50 / 6F55 was designed jointly with GM for FWD and AWD vehicles Ford with engines capacity up to 3.5 liters. This transmission is used for powerful Explorer and Taurus with gasoline engines (3.5 liters) and diesel engines (2.5 liters) and intended for a maximum torque equal to 380 Nm. In two years more advanced modification 6F55 was released for the torque equal to 407 Nm and engine V6 (3.5 liters). The list of cars with transmissions of this family is constantly growing. Over the last years these transmissions found application on Mazda Tribute and CX-9, Mercury Mariner, Milan etc. 6F50 is also classified as 6T70 by GM.
Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type6ATFWD/AWD3809,55Mercon LV
Technical issues and repair guidelines
The 6T70 unit is considered to be more problematic in comparison with Ford modification. 6T70 had many problems related to electrics and transmission components. In 2012 several significant updates were introduced with addition of wavelike rings in packs and performance optimization of solenoids plate and the valve body.
The 6F50 / 6F55 (GM 6T70 / 6T75) transmissions found application on rare American vehicles. For rare overhauls specialists usually order the filter with the pan gasket, which should be replaced with ATF after 50-80 thousand kilometers.It should be taken into account that for this class of automatic transmissions it is crucial to monitor the ATF state (DEXRON-VI - GM or Mercon 5 - Ford) and its temperature. The quantity of fluid required for full change is approx. equal to 9.5 liters. It is advisable to repair the torque converter and clean the valve body when having problems with shifting and operation of the valve body with solenoids.
A quick failure of the torque converter caused by contaminated fluid may be considered as a soft spot of this transmission. This problem leads to oil starvation or increased pressure and cranking of bushings. The valve body is repaired by replacement of worn valves with enlarged valves from Sonnax. Problems of this transmission often start with the wear-out of rings and bushings. Contaminated fluid from the torque converter speeds up the wear-out of these seals and damages solenoids.This transmission rarely gets in repair services as well as cars with this good automatic transmission produced by Ford.
Which cars run with this gearbox?BrandModelYearTypeEngineFordEDGE06-166 SP F/4WDV6 3.5L 3.7LFordEXPLORER10-166 SP F/4WDV6 3.5L 3.7LFordFLEX08-166 SP F/4WDV6 3.5LFordFUSION09-126 SP F/4WDV6 3.5LFordTAURUS07-166 SP F/4WDV6 2.7L 3.5L 3.7LLincolnMKS08-166 SP F/4WDV6 3.7LLincolnMKT09-166 SP F/4WDV6 3.7LLincolnMKX06-146 SP F/4WDV6 3.7LLincolnMKZ12-166 SP F/4WDV6 3.7LMercurySABLE08-096 SP F/4WDV6 3.5L
How to repair this transmission (Videos)TSS and OSS sensor removal and installation6F50 overheating problemDrivers Side Axle Seal Replacement
Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comScheme 6t70pdfSonnaxValve Body Layout 6F50pdfSonnaxValve Body Layout 01JGM 6T70 (Gen. 1), 6T75 (Gen. 1)pdfSonnaxVacuum test GM 6T70 (GEN. 1), 6T75 (GEN. 1)pdfSonnaxVacuum test 6F50, 6F55pdfSonnaxHow Small Changes Led to the New Form & Function of Gen. 2 6T70/75 Valve BodiespdfSonnaxGM Gen. 1 6T70/75/80 | Ford 6F50/55 Concerns & Repair Techniques