Hey guys I'm new to this site and a new Ford owner

About six months ago I purchases a 06 ford fx4 5.4L with 124k miles but it had the transmission replaced at 80k miles. It now has 125k miles and I had the limp mode light come on. So took it in and they said the transmission was bad. So I had rebuilt (under warranty) thank God. But after I got it back the next day the limp light came back on and the O/D light started flashing. Saying trans fault. Any ideas? Maybe a faulty PCM? Like I said I'm new to ford products. Any imput would be great.

 

You need to get the codes read. Take it back to the rebuilder, it still has a warranty, right?

 

Yes, it's still under warranty. I'll call an get it towed