- 1989 Town Car Transmission Controller
- What is a transmission controller?
- How does a transmission controller work?
- What are the symptoms of a bad transmission controller?
- How to test a transmission controller
- How to replace a transmission controller
- Here are the general steps involved in replacing a transmission controller:
- Conclusion
1989 Town Car Transmission Controller
What is a transmission controller?
A transmission controller is an electronic device that controls the shifting of gears in an automatic transmission. It receives input from various sensors, such as the speed sensor, throttle position sensor, and brake pedal position sensor, and uses this information to determine when and how to shift gears.
How does a transmission controller work?
The transmission controller uses a series of solenoid valves to control the flow of fluid in the transmission. These solenoid valves are activated by the controller’s computer, which uses the input from the various sensors to determine when and how to shift gears.
What are the symptoms of a bad transmission controller?
The symptoms of a bad transmission controller can include:
- Erratic shifting
- Slipping gears
- No power in reverse
- Check engine light
How to test a transmission controller
To test a transmission controller, you will need a scan tool. A scan tool can be used to read the trouble codes stored in the controller’s computer. These trouble codes can help you to identify the source of the problem.
How to replace a transmission controller
Replacing a transmission controller is a relatively simple process. However, it is important to follow the instructions in the repair manual for your specific vehicle.
Here are the general steps involved in replacing a transmission controller:
- Disconnect the negative battery terminal.
- Locate the transmission controller. It is usually located on the side of the transmission.
- Disconnect the electrical connectors from the controller.
- Remove the bolts that hold the controller in place.
- Remove the old controller and install the new one.
- Tighten the bolts that hold the controller in place.
- Reconnect the electrical connectors to the controller.
- Reconnect the negative battery terminal.
Conclusion
The transmission controller is an important part of your car’s transmission. If you are experiencing any problems with your transmission, it is important to have it checked by a qualified mechanic.
