How to disassemble the automatic transmission of a Nissan Frontier 2001
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The automatic transmission of the 2001 Nissan Frontier is the re4r01a, this box makes its changes by means of pulses or electronic signals that are sent by the TCM to make the transmission work correctly, the solenoids are the ones that receive these electrical signals and are in charge of opening and closing oil passages under pressure to be able to make the gear changes, the solenoids also serve to control the pressure between each of the gear changes of the transmission, these solenoids in turn are assisted by the accumulators, so that the change is smoother and there are no knocks in each change. The accumulators are small pistons that have one or two springs inside, they also have one or two orrings that prevent oil pressure from escaping, the springs help the piston or accumulators absorb the force of the oil pressure and the changes enter smoothly, the solenoids of the automatic transmissions receive the electrical signals through cables, it is very important to know or mark each of the positions, because if we connect them incorrectly the changes will enter erratically and at the wrong time or the vehicle will not advance. Automatic transmissions of Nissan Frontier from 2001 and earlier will usually start to fail at any moment due to the hard work they are exposed to and the long working times they already have as of this date 2023, the most common failure of the Nissan Frontier transmission and the a340 a245e, a245, a130, a131, a240, u341, u340 transmissions among others are damaged cells, these become hard from the heat to which they are exposed for a long time, damaged range pistons, worn discs among other failures. The fault that this Nissan Frontier Automatic Transmission box presented is that when Straight (D) was selected it did not advance until the oil had a high temperature, this was because the seals were hard or rigid, this is very common in these vehicles since they are exposed to hard work and high temperatures. The video shows how to disassemble the automatic transmission of a 2001 Nissan Frontier, it shows the position of the ball bearings, band, the position of each of the Sprac, the position of the pressure accumulators, the springs of each of them, the position of the solenoid connections and their colors, the position of the small spring that goes next to the last set of discs and the fault due to which the transmission box of this 2001 Nissan Frontier was failing. #tallerrubi #mechanics #mechanic #engine #engines #transmission #automotivemechanics #sensor #toyota #nissan #nissanfrontier
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