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  • karjunkie 10/10/08 7:36 am PST

    The good news is that this sounds like the transmission is mechanically OK, but you have an electric component malfunctioning. I would first check the gear selector switch inside the gear selector console to make sure that it is working properly as it may have burned out a contact. If that is OK, the culprit is probably the transmission control module. A TCM generally uses sensors from the vehicle as well as data provided by the Engine Control Unit to calculate how and when to change gears in the vehicle for optimum performance, fuel economy and shift quality. You should first go to your mechanic or local auto parts store and have them hook up an OBDII scanner to the car and check for any fault codes. This will tell you if what specific parts, sensors or modules are malfunctioning. It will save you hundreds of $$$ if you know what is wrong before replacing a lot of expensive parts.

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