How does the A340E automatic transmission system work?
The electronic control system for the A340E automatic transmission provides extremely precise control of the gear shift timing and lock–up timing in response to driving conditions as sensed by various sensors located throughout the vehicle and in response to the engine’s running condition.
What is the solenoid valve on an A340E?
The No.3 solenoid valve is operated by signals from the ECM to engage or disengage the lock–up clutch of the torque converter clutch. The No.4 solenoid valve is operated by signals from the ECM to control the engagement speed and reduce gear shift shock.
Why is the overload switch on my electric motor not working?
Eventually the thermal overload switch may itself fail and the motor will no longer restart nor can you reset the thermal overload switch. check also for abnormally low voltage levels in the electrical supply. If necessary, replace the motor with a heavier-duty unit.
Where is the overload reset button on an electric motor?
Electric motor overload reset buttons – how to find and reset motor overload switches An electric motor used in lots of equipment may include overload reset button on the motor body. If the motor is overloaded or if it overheats, this button will pop “out” indicating that an internal electric safety device has tripped,shutting the motor off.
Do you need to repair an automatic gearbox A340?
It was used up to the end of 2000-s. As for Automatic Gearbox A340 repairs, this one recommended itself as simple and it doesn’t require repairs. We can name such breakings as problems with solenoids and gaskets. These breakings can be solved by replacement useless gaskets and elements of valve body.
Where can I get a car wiring diagram for free?
Call your local library and ask if they offer online access to auto repair manuals. Many libraries DO offer that service and it’s free. But there’s caveat; you must access the services from the library, not your home. That means you should bring money with you to print out the diagrams on their printers.
What kind of transmission does a Toyota AW4 have?
• 1987-1990, the AW4 had a 21 spline output shaft, a 1 pulse per revolution reed switch Output Speed Sensor, no Input Speed Sensor, and a 0.705:1 OD ratio. 4.0L and 2.5L transmissions are fundamentally the same, except for the torque converter and bellhousing, which are unique for each motor.
Where are the shift valves on an A340E?
There are three solenoid valves on the valve body. These solenoid valves are turned on and off by signals from the ECU to operate the shift valves. These shift valves then switch the fluid passages so that fluid goes to the torque converter and planetary gear units.
How does hydraulic transfer case work on a340h?
In the case of the A340H, the power consumption is doubled by the addition of the hydraulic transfer case, which is essentially like having another automatic transmission inline. But the torque multiplication of the single torque converter isn’t enough to compensate for the additional drag.