For the 2008 Chrysler Town and Country, the transmission uses both an input (or turbine) speed sensor and an output speed sensor. These sensors help the transmission control module (TCM) understand the speed of the input shaft and the speed of the output shaft, allowing the TCM to adjust shifts and maintain optimal performance.
Location: Generally, on this model:
- The Input/Turbine Speed Sensor is located on the front of the transmission, close to the transmission cooler lines.
- The Output Speed Sensor is located on the front side of the transmission, typically more toward the driver's side.
However, accessing the exact location can sometimes be difficult due to other components in the way, and visibility may be limited.
Replacement Procedure: Here's a basic procedure for replacing these sensors:
- Safety First: Disconnect the negative terminal from the battery to ensure safety.
- Locate the speed sensor on the transmission.
- Unplug the electrical connector from the sensor.
- Use a socket or wrench to remove the bolt holding the sensor in place.
- Remove the sensor. Sometimes they can be a bit snug or stuck due to dirt and grime.
- Install the new sensor. Ensure that it's seated properly.
- Reconnect the electrical connector.
- Reconnect the battery terminal.
- Clear any transmission codes using an OBD-II scanner.
Difficulty: The process isn't typically too challenging for someone with basic mechanical skills. However, the difficulty can arise if the sensors are stuck or if there's limited space to access them. Having the right tools and perhaps a flexible socket extension can make the process smoother.
It's always a good idea to refer to a repair manual specific to your vehicle for detailed instructions and illustrations. If in doubt, or if you encounter challenges, you might want to consult with a mechanic or professional before proceeding.
Lastly, the confusion online might stem from the various changes and designs Chrysler has used over the years, and the terminology might vary between sources. It's always best to cross-reference with a reputable repair manual or a trusted mechanic.