Nissan presage do-it-yourself automatic transmission repair

Details: nissan presage do-it-yourself automatic transmission repair from a real master for the site my.housecope.com.

Image - Nissan presage do-it-yourself automatic transmission repair

Image - Nissan presage do-it-yourself automatic transmission repair Image - Nissan presage do-it-yourself automatic transmission repair Image - Nissan presage do-it-yourself automatic transmission repair Image - Nissan presage do-it-yourself automatic transmission repair

By the way, as Tsefirovody wrote, there are adjusting screws on two solenoids, this can be seen in the photo.

The cogs, that is, but adjusting something will not work, they are very stuck, like double punching

And to remove the valve body, it is enough to actually unscrew 14 bolts, 2 on the filter, and almost in a circle 12, since the filter, with the main number of bolts, is screwed only to the valve body, but there is an option to pour oil on it, since after removing the filter, from the unit another 300 grams of oil is poured out Image - Nissan presage do-it-yourself automatic transmission repair

, just unscrewing the bolts, remember where these bolts come from, otherwise there are 4 types of lengths, the longest .. go to the filter, good luck Image - Nissan presage do-it-yourself automatic transmission repair

Story: Fishing trip, vydovy nissanchik, mud. They kneaded for a long time and thoughtfully. At some point, the box refused to quickly turn the wheels back. Attempts were made, but sluggish, and at increased engine speeds. As a result, the car was dug up and pulled out, but even after the box cooled down, the reverse gear did not appear. It was, but only on a flat road and it feels like the box is skidding a lot Everything was normal with the movement.

Theory: During the excavations and the subsequent trip, that just did not think. The most suitable option is overheating of the automatic transmission fluid. However, this option assumes, in the same way, the axle boxes of the box when moving forward. And of course, the thought came to me about the automatic transmission breaking down, well, you never know everything that can break down.

Repair Attempt 1: Replacing the automatic transmission fluid. It gave a result - the reverse gear became more pronounced, but again only on a flat surface and if you press the accelerator pedal. In general, replacing the slurry did not give anything.

Search in manuals and forums: All searches, as before, led to the conclusion that the reverse friction discs had become unusable as a result of oil overheating or other factors (looking ahead - others).

Video (click to play).

A decision was made to extract, disassemble, troubleshoot and repair the automatic transmission right in the garage.

Organized with a relative, and flooded, the car on a half-meter bakulka with a jack. The garage is equipped with a pit, so it rushed: there is no photo, but in short, everything is according to the manual, all the hoses, all the wires were disconnected, from below everything that could be disconnected, the cardan shaft and everything in general. There is no hook in the garage, so we thought that we would wake up and put the box with our hands, we thought that it weighs 50 kilograms, maximum 70, and together we can definitely remove and short-circuit it back. They intended to shoot on a jack and a board across the pit. Oh, I'll tell you, shooting without hanging is still a pleasure. They squirmed for a long time, hard, the box was lowered on a jack, initially it was held on pillows and a pair of engine bolts.

After they jacked up the engine and the box with two jacks, they began to unscrew the pillow and the box from the engine (the flywheel was unscrewed in advance, there are technological holes, in general - all according to the manual ). They unscrewed, but no, something prevents the box from sinking into them - according to the manual, it is simply taken out downward. as a result, they found 2 more bolts for the engine and 1 motor - gearbox. Unscrewed - somehow it is all the same bad, probably stuck - and indeed, and on the guides it sits to the engine. Tugged. the box is unstuck, removed from the guides, we tensed. We pulled ourselves together, compensated for the box with the weight of the jack and began to lower it. It was a huge mistake not to remove the drives from the hubs - although they were not in the boxes, they interfered and resisted a lot and did not allow the box to be lowered and there was nowhere to put them. We tried to unscrew the hub nut in the process, it did not work, one - not from the hand. As a result, one of us held the box on a jack, the second unscrewed the hub from the rack so that by tilting the steering knuckle we could remove the drive to the side so that it would not interfere.

The drive was removed only one, the second was supposed to be pulled out in the process.Yeah. They unscrewed one rack (the steering tips were already dismantled), tilted the entire hub and removed the entire drive from the box, then again the descent and recess of the second drive, the second sat deep in the box and to take it out of the box, the entire box was also moved towards the arch. In general, they barely took out a long drive, a box on a piece of wood, and it weighs a lot together with a gearbox.

Then they carried the box to the street and, with the help of a mini-washer, washed it at least a little, plugging the holes with rags. Then a box on a specially prepared table for parsing.

The manual assumes 88 points for disassembling the box, but what we need is a large-knot disassembly to gears with clutches. At first, they did not start according to the manual, in the end it turned out to be the wrong side, only one bolt was broken off (I did not want to unscrew, then the wrong side was grabbed by a couple of bolts until the moment of collection)

Unscrewed the oil pan, photo from this moment. Some comments along the way of the photos:

4-speed automatic transmission RE4F04A A flawless front-wheel drive layout was developed by Jatco in 1993 for the 3-liter Maxima, using the experience of the JF403E gearbox made in 1990 for Isuzu.

Later they began to put it on other popular cars Nissan and Infiniti with engines up to 3 liters. At the same time, a modification was released for a lower torque from engines up to 2 liters - RE4F03A... Until 1995, the JF403E modification was produced for Isuzu and other manufacturers. (Read what the letters and numbers in the box name mean on the page RE4F03A.)

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The JF403E modification adapted for Mazda Millenia was called in Mazda: LJ4A-EL and was installed in parallel with the "old lady" GF4A-EL from 1995 to 2003. This workhorse also met on rare "Americans" under the Ford name 4F20E.

This family of 4-speed automatic transmissions is used on front-wheel drive vehicles with engines from 2 to 3 liters. Masters call it "04th Nissan", which is rightfully considered a success Jatco by combination: reliability / price. Competitors - aisinovskaya A540, which could not hold out for a long time and gave way to 5 (and 6) speed automatic machines, Ford CD4E, and GM 4T65E... But these boxes lag significantly behind the Jatka bestseller in many ways.

2000 to 2003 several modifications were reissued with the letter "B" - RE4F04B, for more powerful engines (Infiniti, Murano up to 3.5 liters), and then “V” - RE4F04V, but the super-reliable and heavy 4-speed Jatko gearboxes were soon considered “morally obsolete” and since 2006 this family was gradually changed to variators.

Pick up repair kits - press the button on the left.

Filters are typically Dzhatkov for 4-speed automatic machines, metal with an open mesh, which do not require replacement for many years, if you do not allow accidentally burnt oil.

Until 2003, they had a 10 mm intake (No. 315010), and after 2003, a variant with a deep pan appeared - a 34 mm intake (# 315010A).

The filter is rarely changed, often washed, even when Jatko recommends changing it (burnt oil). Instead of replacing the coarse filter, an additional main external fine filter (below).

Image - Nissan presage do-it-yourself automatic transmission repair