Location of the solenoid valve automatic transmission Chevrolet Cruze
The transmission solenoid valve (TCM) is located on the engine side of the transmission. It is installed on the valve body, which controls the flow of transmission fluid in the gearbox.
Solenoid valve functions
The solenoid valve regulates the pressure and flow of transmission fluid in the transmission according to commands received from the transmission control module (TCM). It controls:
* Gear shift
* Torque converter locking
* Clutch locking
Possible malfunctions of the solenoid valve
A faulty solenoid valve can cause the following problems:
*Hard or delayed gear shifts
* Clutch slipping
* Increased fuel consumption
* Jerks when shifting gears
*Check Engine light comes on
Diagnosis of solenoid valve faults
Diagnosis of solenoid valve faults is usually carried out using the following methods:
* Read trouble codes using OBD-II scanner
* Measuring the resistance and voltage of the solenoid valve with a multimeter
* Visually check the solenoid valve and its connections for damage or leaks
Replacing the solenoid valve
Replacing a solenoid valve usually requires the following steps:
* Drain transmission fluid
* Remove the valve body
* Disconnect the solenoid valve from the valve body
* Install a new solenoid valve
* Reinstall the valve body
* Fill the gearbox with transmission fluid
Recommendations
*Always use a quality transmission fluid that meets the vehicle manufacturer’s specifications.
* Check the transmission fluid level and the condition of the solenoid valves regularly.
*If you notice any symptoms of a faulty solenoid valve, contact a qualified mechanic as soon as possible.