My Chrysler Sebring has 98000 miles on it. I could not get the vehicle to shift from 2nd gear so I swapped out the transmission solenoid. I also changed the transmission fluid and filter. Now the car won't shift out of first and an engine light appeared after a couple of minutes of driving. I am assuming the code would indicate the transmission is in limp mode but why would that happen with a new solenoid and would it do any good to put the old solenoid back on? It seems I have a bigger problem now than I did before the swap. Any advice?