Quick? I have a 2005 F150 fx4 5.4 with 51k on her she has never gave me any problems but today the Transmission light blinked off and on thats the second time that has happen to me. Doesn't feel or sound like its slipping what should be my next step???????

 

The next step is have the codes read by someone that has a Ford specific scan tool. The places that read them free don't have the right tools.