Ready to Ship


All Transmissions Include:

Enter the Information below

What Causes A Automatic Transmission Not To Shift

What Causes A Automatic Transmission Not To Shift

There are many different reasons for an automatic transmission not to shift, but one of the most common is a problem with the clutch. When the clutch is worn, it decreases the friction needed to transfer engine power. This results in a delayed or stuck transmission, which results in loss of acceleration even in high gear. A mechanic will need to replace or repair the clutch to fix the problem. If the problem persists, he will need to replace the whole transmission.

Another cause of an automatic transmission not to shift is a problem with the Power Control Module (PCM). The PCM controls the gearbox mechanism and if it's faulty, the transmission won't shift. When this happens, the engine won't get enough power to move forward. As a result, it won't shift. A faulty PCM will prevent the car from shifting properly.

If the clutches aren't the culprit, then you might need to replace the torque converter or the piston collar. In addition, the valve in the hydroblock may be jammed. If the clutches aren't malfunctioning, you can try putting the car in manual mode to diagnose the problem. If this doesn't work, your next step is to replace the transmission's hydraulic components, which could cause the transmission to slip.

The other reason for an automatic transmission not to shift is the ECM. If it's failing to give the correct signal to the clutches, the vehicle will only shift in reverse. This can be a very frustrating problem to have. A qualified mechanic will be able to diagnose the problem and fix it for you. The next step is to replace the clutches and fluid in your transmission. Then, you can check for worn o-rings, and then get the fluid replaced or flushed.

The ECM is also responsible for keeping the complex mechanical components of an automatic transmission from grinding together. A worn-out torque converter can cause a transmission to slip. A leak in the transmission could also affect the hydraulic pressure in the hydroblock. By checking the fluid, you can easily fix the problem yourself. Moreover, a leak in the fluid can cause the transmission to stop working. If you're having this problem, you can replace it yourself.

Some other factors can cause a vehicle to slip and fail to shift. The faulty oil pump or clutches may be the most likely cause of an automatic transmission not to shift. In some cases, the PCM is the main cause. In these cases, the transmission may be leaking or have a damaged torque converter. To fix the problem, you should first disassemble the motor. Once you've replaced the engine, check the speed sensor.

What Causes A Automatic Transmission Not To Shift