We have a 99 dodge with the automatic. We took it to the dealer for no overdrive. The dealer tells me that he hooked up the scanner and the trans temp reads -3 and jumps around but never gets above 6 degrees he says the the temp sensor is in the transmission solenoid and the solenoid needs changed. Has any one heard of this problem before. And is there a way to ground it out and check before we buy and try the solenoid?? Thanks for any help... .