In rare cases, with a sufficiently active ride on an unheated gearbox, problems with solenoids or the clutch drum may appear. It is difficult to carry out this repair independently without the use of special equipment. The complexity of the repair, in this case, is that it is necessary to drain the oil and dismantle the oil pan, which has a sufficiently large size and solid weight. Of the common problems that are characteristic of an automatic transmission 4R70W, we can distinguish the appearance of oil leakage from gaskets that have lost their tightness. The average gearbox resource is 250 thousand km, though, having a good margin of safety, it passes all 300.
This transmission is famous for its reliability, long service life, unpretentiousness in maintenance, and relative simplicity of design. Then, without fundamental differences - 4R70W / E., the final chord was 4R75W/E, which came out in 2003. The original version of the transmission was AOD, which has been produced since 1980, in 1993 its electronic version AOD-E was released. Subsequently, this modification was installed on other powerful sedans and SUVs from Ford. In 1995, Ford, together with Mazda experts, developed a four-speed 4R70W gearbox, which was installed on powerful Ford Crown Victoria cars with an engine capacity of 4.3 liters.
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