An automatic transmission has a limited resource, and the first malfunctions in it appear after several years of operation. In addition, manufacturers allow a small percentage of rejects, which leads to the failure of some of the new automatic boxes.
Instructions
Step 1
To avoid premature breakdown of the automatic transmission, avoid fast driving, sharp turns and braking, and other rough maneuvers on the road. Cars with an automatic transmission are designed for city driving, that is, for a calm and uniform movement. The appearance of sharp jerks when changing gears should alert the driver. When driving at high speeds, a sudden jolt can result in loss of control and an accident. Even rare single shocks indicate that the gearbox needs repair.
Step 2
Before you start repairing the automatic gearbox, purchase all the repair kits necessary for this (which of them will suit your car, you will be prompted in the auto parts store). The repair itself is best done together, but if you fix the car on a lift or put it on a viewing hole, as well as install recoil devices, you can do it alone. Under the hood, be sure to remove all parts and other objects that interfere with the loosening of the bolts. For this, use special hexagons or overhead heads; the use of surrogate tools that can damage the bolt heads is not allowed. Before removing the automatic box, you should drain the oil from it or remove it as carefully as possible so that it does not start pouring out. The location of the mounting bolts depends on the make of the car: in some cars they are located in the flywheel housing, while in others they are located near the torque converter.
Step 3
After removing the box, flush the radiator from oil residues. Wash the gearbox itself from dust and foreign bodies. Now find the cause of the malfunction of the mechanism. The main ones are the lack of oil and the failure of the torque converter. To solve the first problem, thoroughly flush the gearbox from the old oil and refill with new one. In the second case, the torque converter must be replaced with a new one. In doing so, check that both pins are in place. If one is missing, make a second using the existing pin as a reference. The overall dimensions of both pins must be the same. When installing the box back, make sure that its housing fits snugly against the torque converter. The order of tightening the bolts and the force that should be applied to them is indicated in the repair documentation, and the measurement of the tightening force should be used with a torque tool. Before driving a car with a repaired box on a busy highway, be sure to test its handling on a deserted road.
