Automatic transmission problems can be a real hassle. If your muffler isn't working properly or your tires aren't inflating properly, these are problems that definitely need to be addressed as soon as possible, but the car can still be used if the repair is delayed. If it is present in your automatic transmission, it can cancel all your programs for a long time and is very dangerous.
Two ways and doubt
This problem is usually experienced as a delay between gear selection and when the car starts moving. In most cases, this is caused by a slipping clutch or insufficient fluid pressure due to low fluid levels, or sometimes, a failed pressure pump.
Failure to select the correct gear
This can be caused by low fluid, sticking, or an electrical fault in the valves. Another possible reason could be electrical disturbances in the electronic transmission control system.
Hard gear change
This is usually due to the failure of the control system to adjust the torque converter's locked-up clutch, which is designed to slip when shifting gears in aggressive driving conditions.
Engine stop at low speed
The most common reason for this is the failure of the torque converter clutch at low speeds. In this case, the engine and transmission are permanently locked together, which prevents the engine and transmission differential from turning, thus stopping the engine.
Overheating of the gearbox
This happens if the transmission fluid level is too high or too low, and when carrying loads that exceed the towing capacity of the automatic transmission.
Two gears are selected simultaneously
This happens when one shift solenoid fails to trip when the other opens, or when one or more valve spools stick in the valve body, both conditions causing two or more hydraulic circuits to be pressurized at the same time. will be which usually prevents one gear from being fully selected before another gear is selected.
Mechanical sounds
This is a common symptom in high-mileage automatic transmissions and is mainly caused by worn bearings or other rotating components. Common sounds include whining, roaring, etc., which may or may not be different when the car is moving.