The Ford 4F50N 4-speed automatic transmission was assembled by the company from 1999 to 2006 and was a minor upgrade of the well-known AX4N transmission. It was installed on front-wheel drive models with engines up to 400 Nm of torque.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | front |
| Engine volume, l | up to 4.6 |
| Torque output, Nm | up to 400 |
| Recommended oil | Mercon V ATF |
| Oil capacity, liter | 11.6 |
| Replacing the oil | every 60 000 km |
| Replacing the filter | every 60 000 km |
| Gearbox lifespan, km | ~200 000 km |
Gear ratios Ford 4F50N
Using a 2001 Ford Taurus with a 3.0 liter engine as an example:
| Main | 3.770 |
| 1st | 2.771 |
| 2nd | 1.543 |
| 3rd | 1.000 |
| 4th | 0.694 |
| Reverse | 2.263 |
Using
The transmission was installed on:
- Ford Freestar 1 (V229) in 2003 – 2006;
- Ford Taurus 4 (D186) in 1999 – 2006;
- Ford Windstar 2 (WIN126) in 2000 – 2003;
- Lincoln Continental 9 (FN74) in 1999 – 2002;
- Mercury Sable 4 (D186) in 2000 – 2005;
- Mercury Monterey 1 (V229) in 2003 – 2006.
Disadvantages of the Ford 4F50 gearbox
- This automatic transmission is prone to overheating; it’s recommended to use an additional radiator;
- Usually, everyone complains about uncomfortable shifting due to problems with the valve body;
- The plungers, solenoids, and separator plate in the valve body wear out quickly;
- Oil leaks are common here due to wear of the torque converter bushing;
- The brake band and output speed sensor are also considered weak points in automatic transmissions.
