People who basically mix in the automobile industry, whether you are a salesman or a maintenance master, are basically familiar with the sentence "VW if you can't repair it, Toyota that doesn't drive it" Although this sentence is a bit exaggerated, it is also It reflects a general situation. It is true that Toyota has a very low failure rate. Regardless of whether we are in national sentiment or other various reasons, we must admit that the failure rate of Toyota cars is really worthwhile for any car (the majority of famous brands have to work hard, in the underlying technology Aspect to do it).
But as long as it is a machine, as long as it is a car, even a low failure rate will encounter some probability events. Therefore, although Toyota's gearbox has a very low failure rate, we will repair a lot over time. Today we will show you a Toyota gearbox that was disassembled last week to see what the mystery of this Toyota gearbox with a very low failure rate is.
This is almost the most loaded 6AT gearbox on Toyota vehicles. The problem that the owners responded is: the car can’t run fast anyway, and can only be maintained in the middle Driving at a low speed, and a serious setback when entering gear, in fact, this is an obvious pressure relief slip and gear entry shock.
Because of the heavy rain in the place where the car owner lives, this gearbox wades repeatedly
This is the harness plug. All the electronic signal data between the gearbox and the outside are transmitted from here. In fact, many assemblies have this interface
Ready to disassemble
液力变力变A non-rigid torque converter in which liquid is used as the working medium. It is one of the forms of hydraulic transmission. The above picture shows the hydraulic torque converter. It has a closed working chamber, and the liquid circulates in the chamber. The pump wheel, turbine wheel and guide wheel are respectively connected to the input shaft, output shaft and housing. When the power machine (internal combustion engine, electric motor, etc.) drives the input shaft to rotate, the liquid flows out from the centrifugal pump wheel, passes through the turbine wheel, the guide wheel and then returns to the pump wheel, and circulates again and again. The pump wheel transfers the mechanical energy of the input shaft to the liquid. The high-speed liquid drives the turbine to rotate, transferring energy to the output shaft.
Remove the oil pan, you can see that the processing quality is really good, after all, it is a car of nearly 10 years old, after all, it is a world-class car company (we seek truth from facts) The technology is really quite good, the domestic colleagues still need to work hard
This is the valve body of the gearbox, the automatic gearbox valve body assembly (oil circuit board) works Principle The automatic transmission can automatically change the transmission ratio according to the engine load and vehicle speed, so that the car can obtain good power and fuel economy, and reduce engine emission pollution. The automatic transmission is easy to operate and can greatly improve the safety and reliability of the vehicle when the vehicle is crowded.
Look here, there is no special above, basically all AT gearboxes are on the same side
Look carefully at that With a few plugs, the oil has a rusty color, in fact, it can be concluded that the gearbox has water ingress. Combined with the mud and sand on the front gearbox housing, we can almost conclude that
Obviously, it is the clutch that continues to open after slipping.
As long as the water enters, all these friction plates are replaced. No way
No hereIt needs to be replaced. After all, it is a material that is not afraid of water.
After testing, the valve body has serious eccentric wear and must be replaced. This is actually the source of the impact and slippage.
Overhaul of gearboxes with light water intake, focusing on gearbox scrapping. This shows that routine maintenance of the gearbox is still very necessary. Also, once you find a problem with the car's gearbox, please go to the nearby repair shop to read the fault code. Avoid minor gearbox failures due to sloppy and overhaul of the gearbox.
