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4F27E | |
---|---|
Overview | |
Manufacturer | Ford Motor Company Mazda Motor Corporation |
Also called | FN4A-EL |
Production | 2000–2013 |
Body and chassis | |
Class | 4-speed transverse automatic transaxle |
Chronology | |
Predecessor | F-4EAT F3A ATX |
Successor | Ford FNR5/Mazda FS5A-EL |
The 4F27E is an electronically controlled 4-speed automatic transaxle transmission developed by Mazda and Ford. Mazda's name for this transmission is FN4A-EL, Ford's name for this transmission is 4F27E. Mazda's FS5A-EL (Ford FNR5) is the 5-speed successor to this transmission which shares many of the same parts.
The 4F27E is a strengthened 4-speed F-4EAT automatic and only some of the internals were updated. It now has a four-element torque converter that includes a torque converter clutch and geartrain with two planetary gearsets, a transfer-shaft gear final drive, and a larger differential. The hydraulic control system of the 4F27E has six electronically controlled solenoids for shift feel (through line pressure control), shift scheduling (through shift valve position control) and TCC (torque converter clutch) apply, controlled by pulse-width modulation (PWM).
On Mazda vehicles, this transmission uses Mazda M5 fluid (Mazda part number: 0000-77-112E-01), which is NOT Mercon V or Mercon LV according to Mazda Technical Service Bulletin 0500116. This fluid is made by Idemitsu Kosan (according to the label on the back of the Mazda bottle). Idemitsu sells the equivalent Type-M fluid in the aftermarket. The equivalent Ford fluid is FNR5 (Ford part number: XT-9-QMM5). Moreover, Mazda vehicles have "M V" written on the dipstick handle.
On the other hand, Ford cars used Mercon V (Ford part number: XT-5-QMC) until 2007 MY. After 2007 Ford made some hardware and calibration modifications so that from 2008 MY it is required to use Mercon LV oil (Ford part number: XT-10-QLVC). Later Ford authorized back servicing transmissions from 2000 to 2007 with Mercon LV.
Differences between Ford Mercon ATF and Mazda type M5 ATF:
Consequently, carefully refer to the service manual for correct transmission maintenance as Ford and Mazda made their own calibration modification on the transmission so mixing different oils or servicing transmission with the wrong fluid will result in premature wear and transmission damage.
Mazda includes a drain plug, while Ford does not. For the Ford vehicles without the drain plug, a Mazda transmission pan can be installed on a Ford 4F27E, and it will fit perfectly. Aftermarket transmission pans are also available.
Transmission dry fill capacity: 6.7 Liters / 7 Quarts.
Gear ratios:
1 | 2 | 3 | 4 | R |
---|---|---|---|---|
2.81:1 | 1.50:1 | 1.00:1 | 0.73:1 | 2.65:1 |
Transmission name description:
4 | F | 27 | E |
---|---|---|---|
4 speed | Front wheel drive | Maximum input torque after torque converter: 270 Lb-ft (365 N-m) | fully Electronic control |
Applications:
An automatic transmission is a multi-speed transmission used in motor vehicles that does not require any input from the driver to change forward gears under normal driving conditions. Vehicles with internal combustion engines, unlike electric vehicles, require the engine to operate in a narrow range of rates of rotation, requiring a gearbox, operated manually or automatically, to drive the wheels over a wide range of speeds.
A semi-automatic transmission is a multiple-speed transmission where part of its operation is automated, but the driver's input is still required to launch the vehicle from a standstill and to manually change gears. Semi-automatic transmissions were almost exclusively used in motorcycles and are based on conventional manual transmissions or sequential manual transmissions, but use an automatic clutch system. But some semi-automatic transmissions have also been based on standard hydraulic automatic transmissions with torque converters and planetary gearsets.
Hydramatic is an automatic transmission developed by both General Motors' Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was the first mass-produced fully-automatic transmission developed for passenger automobile use.
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The Ultradrive is an automatic transmission manufactured by Chrysler beginning in the 1989 model year.
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