Diy’s gearbox repair operation… Photo: Jin Guangliang
DeirdreAmelia 
7 So far, the vegetable car has run 288000 kilometers. The engine with 2.5 displacement is equipped with an Aixin vertical 6AT gearbox, no. A960E, which can withstand a maximum torque of 320Nm. Today, the parameters are out of date with the miraculous car, and the A960E gearbox, which claims that the universe is invincible and must be controlled, is still trying to reduce the setback. Although A960E is out of date, it is better than the silky shift feeling, its internal structure is precise, and its workmanship is first-class. It is widely used in Crown Ruizhi and other models.
Back to the point, a few weeks ago on the highway to buy a dish, 80 per hour and then accelerate suddenly feel a setback, Kickdown second gear, the speed rose to 3500, the whole car personnel low back pain, you can see the serious setback, under normal circumstances this moment should be smooth 5 liters 6, this phenomenon has never happened before, so bad under 70 slow drive home, after flameout, and then hit the car when the instrument lights are on, connected to the OBD detection of the fault code P0756. To tell you the truth, pork is expensive, gasoline is expensive, and the price of ETC has gone up again. Buying a vegetable truck to join the excitement is too TM south, right? What do you think of the car owners? You are welcome to comment and repost.![]()
Back to the point, a few weeks ago on the highway to buy a dish, 80 per hour and then accelerate suddenly feel a setback, Kickdown second gear, the speed rose to 3500, the whole car personnel low back pain, you can see the serious setback, under normal circumstances this moment should be smooth 5 liters 6, this phenomenon has never happened before, so bad under 70 slow drive home, after flameout, and then hit the car when the instrument lights are on, connected to the OBD detection of the fault code P0756. To tell you the truth, pork is expensive, gasoline is expensive, and the price of ETC has gone up again. Buying a vegetable truck to join the excitement is too TM south, right? What do you think of the car owners? You are welcome to comment and repost.
The fault code indicates that there is a fault in the gearbox and the manual indicates the fault of S2 solenoid valve. My idea: open the gearbox to replace the damaged solenoid valve and thoroughly clean the inside of the gearbox, while replacing the brand new gearbox oil and strainer.
P0756, the manual indicates that the faulty part is S2
S2 position, open the oil pan of the gearbox and you can see
I buy vegetable car Diy special parking space, Jack up the front half of Yuanbaoliang, climb into the cold bottom of the car, intend to first release the gearbox oil, and then remove the oil pan. The oil release screw is at the back of the gearbox, raising the front of the car is conducive to emptying the old oil, and the red security bracket is left and right to ensure safety. Lying on the board is too high and difficult to use, it is better to lie on the plank and it is convenient to lie on the plank to put the tool parts.
There is enough space to operate by replacing the lying board with a plank, which is convenient for tool parts, torque wrench, mid-fly wrench, 10-point 14-point 24, etc., 5mm hexagonal sleeve, long and short rods, afterburner, WD40 screw loosening agent, chemical cleaner, rag, car Jack, oil pan and other tools are all ready.
The wave box guard was removed and a slight oil leakage was found.
The exhaust pipe bracket should be removed first, and the two 14 screws of the rusty exhaust pipe should be sprayed with WD40 screw loosening agent first, and then easily removed.
The refueling port is in this black plastic sheet. first remove the plastic plate covered with oil stains and expose the refueling screws. The purpose is to prevent the embarrassing situation that the refueling hole can not be removed in case the old oil is released.
This rusty 24mm screw is the refueling screw, rusting because the air conditioning water drips from the gearbox, and the air conditioning water accumulated by the sponge in the black guard plate soaks the screws for a long time, corroding the steel screws and causing rust. I suggest removing the black guard plate, which later proved to be superfluous and will only cause the screw to rust and leak oil, and there will be no rust leakage after removal. There are 20 10mm screws in a circle of the oil pan, and the torque distance specified in the manual is 4.4Nm.
Some treasure 11 yuan gearbox oil tool, the size is moderate and easy to use
The original gearbox oil is only 140 liters, which is much cheaper than the parts of the miraculous car. I strongly suggest that you change it frequently and change the gravity at the bottom of the car for 20,000 kilometers, but do not cycle the machine, because it may cause secondary pollution and the cost is higher. After removing the valve body and cleaning, a total of about 6-7 liters need to be added, and if only changing the filter screen, only 4 liters per barrel will be added.
After removing the oil pan of the gearbox, you can see each solenoid valve and its wire harness, the black is the gearbox filter, replace
Remove the filter screen to expose the gearbox valve body and all the solenoid valves. The wire harness of the single-wire solenoid valve is easy to disassemble. I don’t know why the wire harness and valve of the two-wire solenoid valve cannot be disassembled.
Tried many times, can not separate the line and the valve, do not know why? Can only hang in mid-air to continue the work below.
Remove the first single-line solenoid valve SL1
Resistance 13.5 ohms, resistance value is within the range specified in the manual, this solenoid valve is normal
Remove all solenoid valve wire harness, four solenoid valves that can not be removed are suspended in mid-air, the next step is to remove the whole valve body and thoroughly decompose and clean.
If you see the shift lever from another angle of the valve body, you need to separate it first, and then remove the screws that fix the valve body. On the contrary, install the shift rod and then install the fixing screws.
The whole valve body was removed, but something fell out of nowhere, scared half to death.
This is it. Please ignore the greasy hands. Fortunately, there is a card friend ordinary car to help check the information, this is an one-way ball valve, the manual indicates the source, I would like to thank the enthusiastic card friends for their help
The whole valve body is taken home to continue to decompose and clean.
This is the solenoid valve S2. It looks blackened on the surface and should be damaged.
Take apart S2 to measure resistance, 68 ohms, much higher than the standard value of less than 15 ohms. Immediately place an order in a treasure, and the express delivery will arrive the next day.
Thank you for your ordinary car and the information you found in time.
Thank you for your ordinary car and the very useful information found in time.
Open the valve body, labyrinth-like oil channel, does anyone understand the working principle? This has to admit the prowess of the Japanese, and the huge gap between the Chinese and the Japanese in the automobile industry, and this gap is not decreasing but expanding. People’s pride in surpassing Japan only comes from high-rise buildings. the only thing I can do as a mechanical engineer is to thoroughly clean the labyrinth of oil ducts, sigh and restore the installation.
Figure 2 of the maze, black powder is everywhere, filled with oil channels, carefully cleaned with cotton swabs from your ears.
Maze figure 3, use seven bottles of detergent to thoroughly clean all oil channels, red circle position with plastic balls, easy to lose, you must be careful.
After thoroughly cleaning the oil channel, the assembly begins. Each screw is of different length and must be installed back in the original position with a torque of 11 Nm.
For the installation of the one-way ball valve, first stick the red grease (I use brake pump grease) in the upper ball valve hole, slowly lift the whole valve body with a car Jack at the bottom of the car, place the spring and install the shift rod at the same time, tighten the screws diagonally after the correct position, complete the valve body installation, install all solenoid valves, insert all wire harness, install back filter screen, install oil pan, and install 20 screws with 4.4 Nm torque. Inject about 7 liters of original gearbox oil.
Check and adjust the transmission oil level according to manual requirements. Finally, the road was tested and the fault was eliminated. So far, there have been no fault codes. The 5-liter 6 is completely normal, and the silky shifting feeling has been restored. At this point, the grocery shopping car has completely returned to normal.
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